12974678336 has 56 divisors (see below), whose sum is σ = 25914294120. Its totient is φ = 6445228032.

The previous prime is 12974678293. The next prime is 12974678351. The reversal of 12974678336 is 63387647921.

It can be written as a sum of positive squares in 4 ways, for example, as 11337990400 + 1636687936 = 106480^2 + 40456^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12559676 + ... + 12560708.

Almost surely, 2^12974678336 is an apocalyptic number.

12974678336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12974678336 is a deficient number, since it is larger than the sum of its proper divisors (12939615784).

12974678336 is a wasteful number, since it uses less digits than its factorization.

12974678336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131 (or 2121 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 56.

The spelling of 12974678336 in words is "twelve billion, nine hundred seventy-four million, six hundred seventy-eight thousand, three hundred thirty-six".