117172977136 has 60 divisors (see below), whose sum is σ = 235139762592. Its totient is φ = 56561856000.

The previous prime is 117172977133. The next prime is 117172977169. The reversal of 117172977136 is 631779271711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117172977133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6618216 + ... + 6635896.

Almost surely, 2^117172977136 is an apocalyptic number.

117172977136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117172977136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117569881296).

117172977136 is an abundant number, since it is smaller than the sum of its proper divisors (117966785456).

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

117172977136 is a wasteful number, since it uses less digits than its factorization.

117172977136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18182 (or 18145 counting only the distinct ones).

The product of its digits is 777924, while the sum is 52.

The spelling of 117172977136 in words is "one hundred seventeen billion, one hundred seventy-two million, nine hundred seventy-seven thousand, one hundred thirty-six".