11937815232 has 56 divisors (see below), whose sum is σ = 36097683456. Its totient is φ = 3410803968.

The previous prime is 11937815231. The next prime is 11937815237. The reversal of 11937815232 is 23251873911.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×11937815232² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (11937815231) 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, 4439808 + ... + 4442495.

Almost surely, 2^11937815232 is an apocalyptic number.

11937815232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11937815232 is an abundant number, since it is smaller than the sum of its proper divisors (24159868224).

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

11937815232 is an equidigital number, since it uses as much as digits as its factorization.

11937815232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8882325 (or 8882315 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The spelling of 11937815232 in words is "eleven billion, nine hundred thirty-seven million, eight hundred fifteen thousand, two hundred thirty-two".