313576573051561 has 4 divisors (see below), whose sum is σ = 317872142545492. Its totient is φ = 309281003557632.

The previous prime is 313576573051541. The next prime is 313576573051613. The reversal of 313576573051561 is 165150375675313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 128108781805225 + 185467791246336 = 11318515^2 + 13618656^2 .

It is a cyclic number.

It is not a de Polignac number, because 313576573051561 - 2⁷ = 313576573051433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313576573051496 and 313576573051505.

It is not an unprimeable number, because it can be changed into a prime (313576573051541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2147784746856 + ... + 2147784747001.

It is an arithmetic number, because the mean of its divisors is an integer number (79468035636373).

Almost surely, 2^{313576573051561} is an apocalyptic number.

It is an amenable number.

313576573051561 is a deficient number, since it is larger than the sum of its proper divisors (4295569493931).

313576573051561 is an equidigital number, since it uses as much as digits as its factorization.

313576573051561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4295569493930.

The product of its (nonzero) digits is 29767500, while the sum is 58.

The spelling of 313576573051561 in words is "three hundred thirteen trillion, five hundred seventy-six billion, five hundred seventy-three million, fifty-one thousand, five hundred sixty-one".