117887172012 has 48 divisors (see below), whose sum is σ = 306029011680. Its totient is φ = 39244860864.

The previous prime is 117887171923. The next prime is 117887172107. The reversal of 117887172012 is 210271788711.

It is a super-2 number, since 2×117887172012² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 622563 + ... + 789530.

It is an arithmetic number, because the mean of its divisors is an integer number (6375604410).

Almost surely, 2^117887172012 is an apocalyptic number.

117887172012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

117887172012 is an abundant number, since it is smaller than the sum of its proper divisors (188141839668).

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

117887172012 is a wasteful number, since it uses less digits than its factorization.

117887172012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412879 (or 1412871 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 45.

The spelling of 117887172012 in words is "one hundred seventeen billion, eight hundred eighty-seven million, one hundred seventy-two thousand, twelve".