12920927232 has 88 divisors (see below), whose sum is σ = 34473707136. Its totient is φ = 4302635008.

The previous prime is 12920927221. The next prime is 12920927249. The reversal of 12920927232 is 23272902921.

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, 4861648 + ... + 4864304.

It is an arithmetic number, because the mean of its divisors is an integer number (391746672).

Almost surely, 2^12920927232 is an apocalyptic number.

12920927232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12920927232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17236853568).

12920927232 is an abundant number, since it is smaller than the sum of its proper divisors (21552779904).

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

12920927232 is a wasteful number, since it uses less digits than its factorization.

12920927232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263 (or 4245 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 12920927232 in words is "twelve billion, nine hundred twenty million, nine hundred twenty-seven thousand, two hundred thirty-two".