23809756920 has 64 divisors (see below), whose sum is σ = 71461595520. Its totient is φ = 6346395264.

The previous prime is 23809756913. The next prime is 23809756937. The reversal of 23809756920 is 2965790832.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228279 + ... + 315801.

It is an arithmetic number, because the mean of its divisors is an integer number (1116587430).

Almost surely, 2^23809756920 is an apocalyptic number.

23809756920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23809756920 is an abundant number, since it is smaller than the sum of its proper divisors (47651838600).

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

23809756920 is a wasteful number, since it uses less digits than its factorization.

23809756920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89804 (or 89800 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 23809756920 in words is "twenty-three billion, eight hundred nine million, seven hundred fifty-six thousand, nine hundred twenty".