12499683994 has 16 divisors (see below), whose sum is σ = 22166928000. Its totient is φ = 5172282864.

The previous prime is 12499683901. The next prime is 12499684031. The reversal of 12499683994 is 49938699421.

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, 15393294 + ... + 15394105.

It is an arithmetic number, because the mean of its divisors is an integer number (1385433000).

Almost surely, 2^12499683994 is an apocalyptic number.

12499683994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12499683994 is a deficient number, since it is larger than the sum of its proper divisors (9667244006).

12499683994 is a wasteful number, since it uses less digits than its factorization.

12499683994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30787437.

The product of its digits is 30233088, while the sum is 64.

The spelling of 12499683994 in words is "twelve billion, four hundred ninety-nine million, six hundred eighty-three thousand, nine hundred ninety-four".