23279865057 has 6 divisors (see below), whose sum is σ = 33626471762. Its totient is φ = 15519910032.

The previous prime is 23279865047. The next prime is 23279865079. The reversal of 23279865057 is 75056897232.

23279865057 is a `hidden beast` number, since 23 + 27 + 98 + 6 + 505 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21654888336 + 1624976721 = 147156^2 + 40311^2 .

It is not a de Polignac number, because 23279865057 - 2⁸ = 23279864801 is a prime.

It is a super-2 number, since 2×23279865057² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23279864994 and 23279865012.

It is not an unprimeable number, because it can be changed into a prime (23279865047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1293325828 + ... + 1293325845.

Almost surely, 2^23279865057 is an apocalyptic number.

It is an amenable number.

23279865057 is a deficient number, since it is larger than the sum of its proper divisors (10346606705).

23279865057 is a wasteful number, since it uses less digits than its factorization.

23279865057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586651679 (or 2586651676 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The spelling of 23279865057 in words is "twenty-three billion, two hundred seventy-nine million, eight hundred sixty-five thousand, fifty-seven".