117545792640 has 128 divisors (see below), whose sum is σ = 375623421120. Its totient is φ = 31266385920.

The previous prime is 117545792621. The next prime is 117545792657. The reversal of 117545792640 is 46297545711.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685135 + ... + 839345.

Almost surely, 2^117545792640 is an apocalyptic number.

117545792640 is a gapful number since it is divisible by the number (10) 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 117545792640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187811710560).

117545792640 is an abundant number, since it is smaller than the sum of its proper divisors (258077628480).

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

117545792640 is a wasteful number, since it uses less digits than its factorization.

117545792640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154630 (or 154618 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 51.

The spelling of 117545792640 in words is "one hundred seventeen billion, five hundred forty-five million, seven hundred ninety-two thousand, six hundred forty".