12921162920 has 32 divisors (see below), whose sum is σ = 29691187200. Its totient is φ = 5058497088.

The previous prime is 12921162883. The next prime is 12921162949. The reversal of 12921162920 is 2926112921.

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, 3434600 + ... + 3438359.

It is an arithmetic number, because the mean of its divisors is an integer number (927849600).

Almost surely, 2^12921162920 is an apocalyptic number.

12921162920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12921162920 is an abundant number, since it is smaller than the sum of its proper divisors (16770024280).

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

12921162920 is a wasteful number, since it uses less digits than its factorization.

12921162920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6873017 (or 6873013 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 12921162920 in words is "twelve billion, nine hundred twenty-one million, one hundred sixty-two thousand, nine hundred twenty".