23277505920 has 64 divisors (see below), whose sum is σ = 74197056240. Its totient is φ = 6207334400.

The previous prime is 23277505903. The next prime is 23277505931. The reversal of 23277505920 is 2950577232.

It is a tau number, because it is divible by the number of its divisors (64).

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, 6059931 + ... + 6063770.

Almost surely, 2^23277505920 is an apocalyptic number.

23277505920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23277505920 is an abundant number, since it is smaller than the sum of its proper divisors (50919550320).

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

23277505920 is a wasteful number, since it uses less digits than its factorization.

23277505920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12123723 (or 12123711 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 42.

The spelling of 23277505920 in words is "twenty-three billion, two hundred seventy-seven million, five hundred five thousand, nine hundred twenty".