23931197980 has 24 divisors (see below), whose sum is σ = 50267966112. Its totient is φ = 9570107712.

The previous prime is 23931197977. The next prime is 23931198023. The reversal of 23931197980 is 8979113932.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64312 + ... + 228031.

It is an arithmetic number, because the mean of its divisors is an integer number (2094498588).

Almost surely, 2^23931197980 is an apocalyptic number.

23931197980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23931197980 is an abundant number, since it is smaller than the sum of its proper divisors (26336768132).

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

23931197980 is a wasteful number, since it uses less digits than its factorization.

23931197980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296445 (or 296443 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 52.

The spelling of 23931197980 in words is "twenty-three billion, nine hundred thirty-one million, one hundred ninety-seven thousand, nine hundred eighty".