1313806924872 has 128 divisors (see below), whose sum is σ = 4137044016000. Its totient is φ = 382972043520.

The previous prime is 1313806924819. The next prime is 1313806924883. The reversal of 1313806924872 is 2784296083131.

It is a happy number.

1313806924872 is a `hidden beast` number, since 1 + 313 + 80 + 6 + 9 + 248 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12259279 + ... + 12365982.

It is an arithmetic number, because the mean of its divisors is an integer number (32320656375).

Almost surely, 2^{1313806924872} is an apocalyptic number.

1313806924872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1313806924872 is an abundant number, since it is smaller than the sum of its proper divisors (2823237091128).

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

1313806924872 is a wasteful number, since it uses less digits than its factorization.

1313806924872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24625308 (or 24625298 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 1313806924872 in words is "one trillion, three hundred thirteen billion, eight hundred six million, nine hundred twenty-four thousand, eight hundred seventy-two".