23257706465 has 16 divisors (see below), whose sum is σ = 31899329280. Its totient is φ = 15946618560.

The previous prime is 23257706441. The next prime is 23257706471. The reversal of 23257706465 is 56460775232.

It is not a de Polignac number, because 23257706465 - 2²⁰ = 23256657889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437900 + ... + 488130.

It is an arithmetic number, because the mean of its divisors is an integer number (1993708080).

Almost surely, 2^23257706465 is an apocalyptic number.

It is an amenable number.

23257706465 is a deficient number, since it is larger than the sum of its proper divisors (8641622815).

23257706465 is a wasteful number, since it uses less digits than its factorization.

23257706465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63472.

The product of its (nonzero) digits is 2116800, while the sum is 47.

The spelling of 23257706465 in words is "twenty-three billion, two hundred fifty-seven million, seven hundred six thousand, four hundred sixty-five".