23399673957 has 16 divisors (see below), whose sum is σ = 37817655360. Its totient is φ = 14181620400.

The previous prime is 23399673943. The next prime is 23399673971. The reversal of 23399673957 is 75937699332.

23399673957 is a `hidden beast` number, since 233 + 9 + 9 + 6 + 7 + 395 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (23399673943) and next prime (23399673971).

It is not a de Polignac number, because 23399673957 - 2¹⁴ = 23399657573 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23399673894 and 23399673903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23399673917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39393094 + ... + 39393687.

It is an arithmetic number, because the mean of its divisors is an integer number (2363603460).

Almost surely, 2^23399673957 is an apocalyptic number.

23399673957 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

23399673957 is a deficient number, since it is larger than the sum of its proper divisors (14417981403).

23399673957 is a wasteful number, since it uses less digits than its factorization.

23399673957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78786801 (or 78786795 counting only the distinct ones).

The product of its digits is 57868020, while the sum is 63.

The spelling of 23399673957 in words is "twenty-three billion, three hundred ninety-nine million, six hundred seventy-three thousand, nine hundred fifty-seven".