13327087872 has 72 divisors (see below), whose sum is σ = 40536575296. Its totient is φ = 3807737856.

The previous prime is 13327087859. The next prime is 13327087883. The reversal of 13327087872 is 27878072331.

It is a happy number.

It is a super-2 number, since 2×13327087872² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1234123 + ... + 1244874.

Almost surely, 2^13327087872 is an apocalyptic number.

13327087872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13327087872 is an abundant number, since it is smaller than the sum of its proper divisors (27209487424).

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

13327087872 is an equidigital number, since it uses as much as digits as its factorization.

13327087872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479023 (or 2479009 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 48.

The spelling of 13327087872 in words is "thirteen billion, three hundred twenty-seven million, eighty-seven thousand, eight hundred seventy-two".