23699078457 has 16 divisors (see below), whose sum is σ = 31648169280. Its totient is φ = 15774711552.

The previous prime is 23699078449. The next prime is 23699078479. The reversal of 23699078457 is 75487099632.

It is not a de Polignac number, because 23699078457 - 2³ = 23699078449 is a prime.

It is a super-2 number, since 2×23699078457² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23699078457.

It is not an unprimeable number, because it can be changed into a prime (23699071457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7996858 + ... + 7999820.

It is an arithmetic number, because the mean of its divisors is an integer number (1978010580).

Almost surely, 2^23699078457 is an apocalyptic number.

It is an amenable number.

23699078457 is a deficient number, since it is larger than the sum of its proper divisors (7949090823).

23699078457 is a wasteful number, since it uses less digits than its factorization.

23699078457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6232.

The product of its (nonzero) digits is 22861440, while the sum is 60.

The spelling of 23699078457 in words is "twenty-three billion, six hundred ninety-nine million, seventy-eight thousand, four hundred fifty-seven".