2715223681 has 8 divisors (see below), whose sum is σ = 2741278760. Its totient is φ = 2689189632.

The previous prime is 2715223661. The next prime is 2715223717. The reversal of 2715223681 is 1863225172.

It can be written as a sum of positive squares in 4 ways, for example, as 130416400 + 2584807281 = 11420^2 + 50841^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2715223681 - 2⁹ = 2715223169 is a prime.

It is a super-2 number, since 2×2715223681² = 14744879275726379522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2715223681.

It is not an unprimeable number, because it can be changed into a prime (2715223661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403561 + ... + 410233.

It is an arithmetic number, because the mean of its divisors is an integer number (342659845).

Almost surely, 2^2715223681 is an apocalyptic number.

It is an amenable number.

2715223681 is a deficient number, since it is larger than the sum of its proper divisors (26055079).

2715223681 is a wasteful number, since it uses less digits than its factorization.

2715223681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10515.

The product of its digits is 40320, while the sum is 37.

The square root of 2715223681 is about 52107.8082536581. The cubic root of 2715223681 is about 1395.0888602757.

It can be divided in two parts, 2715223 and 681, that added together give a square (2715904 = 1648²).

The spelling of 2715223681 in words is "two billion, seven hundred fifteen million, two hundred twenty-three thousand, six hundred eighty-one".