23729456020 has 48 divisors (see below), whose sum is σ = 51068505600. Its totient is φ = 9256423680.

The previous prime is 23729455991. The next prime is 23729456039. The reversal of 23729456020 is 2065492732.

It is a super-2 number, since 2×23729456020² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2717221 + ... + 2725939.

It is an arithmetic number, because the mean of its divisors is an integer number (1063927200).

Almost surely, 2^23729456020 is an apocalyptic number.

23729456020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23729456020 is an abundant number, since it is smaller than the sum of its proper divisors (27339049580).

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

23729456020 is a wasteful number, since it uses less digits than its factorization.

23729456020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12088 (or 12086 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 23729456020 in words is "twenty-three billion, seven hundred twenty-nine million, four hundred fifty-six thousand, twenty".