117571437520 has 40 divisors (see below), whose sum is σ = 275320190880. Its totient is φ = 46690235520.

The previous prime is 117571437491. The next prime is 117571437593. The reversal of 117571437520 is 25734175711.

117571437520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 5275366 + ... + 5297605.

It is an arithmetic number, because the mean of its divisors is an integer number (6883004772).

Almost surely, 2^117571437520 is an apocalyptic number.

117571437520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117571437520 is an abundant number, since it is smaller than the sum of its proper divisors (157748753360).

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

117571437520 is a wasteful number, since it uses less digits than its factorization.

117571437520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10573123 (or 10573117 counting only the distinct ones).

The product of its (nonzero) digits is 205800, while the sum is 43.

The spelling of 117571437520 in words is "one hundred seventeen billion, five hundred seventy-one million, four hundred thirty-seven thousand, five hundred twenty".