13956132915 has 48 divisors (see below), whose sum is σ = 25709205600. Its totient is φ = 6979286016.

The previous prime is 13956132899. The next prime is 13956132961. The reversal of 13956132915 is 51923165931.

13956132915 is a `hidden beast` number, since 1 + 3 + 9 + 5 + 613 + 29 + 1 + 5 = 666.

It is not a de Polignac number, because 13956132915 - 2⁴ = 13956132899 is a prime.

It is a super-2 number, since 2×13956132915² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 171876 + ... + 239694.

It is an arithmetic number, because the mean of its divisors is an integer number (535608450).

Almost surely, 2^13956132915 is an apocalyptic number.

13956132915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13956132915 is a deficient number, since it is larger than the sum of its proper divisors (11753072685).

13956132915 is a wasteful number, since it uses less digits than its factorization.

13956132915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68116 (or 68113 counting only the distinct ones).

The product of its digits is 218700, while the sum is 45.

The spelling of 13956132915 in words is "thirteen billion, nine hundred fifty-six million, one hundred thirty-two thousand, nine hundred fifteen".