12931856630 has 64 divisors (see below), whose sum is σ = 29045813760. Its totient is φ = 4027276800.

The previous prime is 12931856629. The next prime is 12931856647. The reversal of 12931856630 is 3665813921.

12931856630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 987566 + ... + 1000574.

It is an arithmetic number, because the mean of its divisors is an integer number (453840840).

Almost surely, 2^12931856630 is an apocalyptic number.

12931856630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12931856630 is an abundant number, since it is smaller than the sum of its proper divisors (16113957130).

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

12931856630 is a wasteful number, since it uses less digits than its factorization.

12931856630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14325.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 12931856630 in words is "twelve billion, nine hundred thirty-one million, eight hundred fifty-six thousand, six hundred thirty".