23625727938 has 18 divisors (see below), whose sum is σ = 51190490169. Its totient is φ = 7875025272.

The previous prime is 23625727933. The next prime is 23625727969. The reversal of 23625727938 is 83972752632.

23625727938 is a `hidden beast` number, since 2 + 3 + 62 + 572 + 7 + 9 + 3 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23601255129 + 24472809 = 153627^2 + 4947^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=108687.

It is not an unprimeable number, because it can be changed into a prime (23625727933) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 634008 + ... + 670236.

Almost surely, 2^23625727938 is an apocalyptic number.

23625727938 is an abundant number, since it is smaller than the sum of its proper divisors (27564762231).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23625727938 is an frugal number, since it uses more digits than its factorization.

23625727938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72466 (or 36234 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The spelling of 23625727938 in words is "twenty-three billion, six hundred twenty-five million, seven hundred twenty-seven thousand, nine hundred thirty-eight".