23972611938 has 16 divisors (see below), whose sum is σ = 52303880736. Its totient is φ = 7264427840.

The previous prime is 23972611933. The next prime is 23972611951. The reversal of 23972611938 is 83911627932.

It is a super-2 number, since 2×23972611938² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23972611933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181610631 + ... + 181610762.

It is an arithmetic number, because the mean of its divisors is an integer number (3268992546).

Almost surely, 2^23972611938 is an apocalyptic number.

23972611938 is an abundant number, since it is smaller than the sum of its proper divisors (28331268798).

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

23972611938 is a wasteful number, since it uses less digits than its factorization.

23972611938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363221409.

The product of its digits is 979776, while the sum is 51.

The spelling of 23972611938 in words is "twenty-three billion, nine hundred seventy-two million, six hundred eleven thousand, nine hundred thirty-eight".