12610378920 has 32 divisors (see below), whose sum is σ = 37831137120. Its totient is φ = 3362767680.

The previous prime is 12610378883. The next prime is 12610378931. The reversal of 12610378920 is 2987301621.

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, 52543126 + ... + 52543365.

It is an arithmetic number, because the mean of its divisors is an integer number (1182223035).

Almost surely, 2^12610378920 is an apocalyptic number.

12610378920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12610378920 is an abundant number, since it is smaller than the sum of its proper divisors (25220758200).

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

12610378920 is a wasteful number, since it uses less digits than its factorization.

12610378920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105086505 (or 105086501 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 12610378920 in words is "twelve billion, six hundred ten million, three hundred seventy-eight thousand, nine hundred twenty".