12815577936 has 60 divisors (see below), whose sum is σ = 40989510432. Its totient is φ = 3661593408.

The previous prime is 12815577923. The next prime is 12815577941. The reversal of 12815577936 is 63977551821.

12815577936 is a `hidden beast` number, since 1 + 2 + 81 + 557 + 7 + 9 + 3 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6355926 + ... + 6357941.

Almost surely, 2^12815577936 is an apocalyptic number.

12815577936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12815577936 is an abundant number, since it is smaller than the sum of its proper divisors (28173932496).

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

12815577936 is a wasteful number, since it uses less digits than its factorization.

12815577936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12713888 (or 12713879 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The spelling of 12815577936 in words is "twelve billion, eight hundred fifteen million, five hundred seventy-seven thousand, nine hundred thirty-six".