2847085903561 has 3 divisors (see below), whose sum is σ = 2847087590893. Its totient is φ = 2847084216230.

The previous prime is 2847085903537. The next prime is 2847085903573. The reversal of 2847085903561 is 1653095807482.

The square root of 2847085903561 is 1687331.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 2847085903561 - 2³⁷ = 2709646950089 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2847085903496 and 2847085903505.

It is not an unprimeable number, because it can be changed into a prime (2847085303561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 843666 + ... + 2530996.

It is a 1-persistent number, because it is pandigital, but 2⋅2847085903561 = 5694171807122 is not.

Almost surely, 2^{2847085903561} is an apocalyptic number.

2847085903561 is the 1687331-st square number.

2847085903561 is the 843666-th centered octagonal number.

It is an amenable number.

2847085903561 is a deficient number, since it is larger than the sum of its proper divisors (1687332).

2847085903561 is an frugal number, since it uses more digits than its factorization.

2847085903561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374662 (or 1687331 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 58.

The spelling of 2847085903561 in words is "two trillion, eight hundred forty-seven billion, eighty-five million, nine hundred three thousand, five hundred sixty-one".