23856027939 has 12 divisors (see below), whose sum is σ = 34466253016. Its totient is φ = 15900535872.

The previous prime is 23856027931. The next prime is 23856027953. The reversal of 23856027939 is 93972065832.

It is a happy number.

23856027939 is a `hidden beast` number, since 2 + 3 + 8 + 560 + 2 + 79 + 3 + 9 = 666.

It is not a de Polignac number, because 23856027939 - 2³ = 23856027931 is a prime.

It is a super-2 number, since 2×23856027939² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23856027931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246502 + ... + 329355.

Almost surely, 2^23856027939 is an apocalyptic number.

23856027939 is a deficient number, since it is larger than the sum of its proper divisors (10610225077).

23856027939 is a wasteful number, since it uses less digits than its factorization.

23856027939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580466 (or 580463 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 23856027939 in words is "twenty-three billion, eight hundred fifty-six million, twenty-seven thousand, nine hundred thirty-nine".