12905696920 has 16 divisors (see below), whose sum is σ = 29037818160. Its totient is φ = 5162278752.

The previous prime is 12905696851. The next prime is 12905696927. The reversal of 12905696920 is 2969650921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12905696927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161321172 + ... + 161321251.

It is an arithmetic number, because the mean of its divisors is an integer number (1814863635).

Almost surely, 2^12905696920 is an apocalyptic number.

12905696920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12905696920 is an abundant number, since it is smaller than the sum of its proper divisors (16132121240).

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

12905696920 is a wasteful number, since it uses less digits than its factorization.

12905696920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322642434 (or 322642430 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 49.

The spelling of 12905696920 in words is "twelve billion, nine hundred five million, six hundred ninety-six thousand, nine hundred twenty".