11968472172 has 24 divisors (see below), whose sum is σ = 29396248000. Its totient is φ = 3779517456.

The previous prime is 11968472161. The next prime is 11968472189. The reversal of 11968472172 is 27127486911.

It is a super-2 number, since 2×11968472172² (a number of 21 digits) contains 22 as substring.

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, 26246422 + ... + 26246877.

Almost surely, 2^11968472172 is an apocalyptic number.

11968472172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11968472172 is an abundant number, since it is smaller than the sum of its proper divisors (17427775828).

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

11968472172 is a wasteful number, since it uses less digits than its factorization.

11968472172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52493325 (or 52493323 counting only the distinct ones).

The product of its digits is 338688, while the sum is 48.

The spelling of 11968472172 in words is "eleven billion, nine hundred sixty-eight million, four hundred seventy-two thousand, one hundred seventy-two".