1313758872 has 32 divisors (see below), whose sum is σ = 3649330800. Its totient is φ = 437919552.

The previous prime is 1313758837. The next prime is 1313758877. The reversal of 1313758872 is 2788573131.

1313758872 is a `hidden beast` number, since 1 + 31 + 37 + 588 + 7 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313758877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3040893 + ... + 3041324.

Almost surely, 2^1313758872 is an apocalyptic number.

1313758872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1313758872 is an abundant number, since it is smaller than the sum of its proper divisors (2335571928).

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

1313758872 is a wasteful number, since it uses less digits than its factorization.

1313758872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6082232 (or 6082222 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 1313758872 is about 36245.8117856395. The cubic root of 1313758872 is about 1095.2297209907.

The spelling of 1313758872 in words is "one billion, three hundred thirteen million, seven hundred fifty-eight thousand, eight hundred seventy-two".