117929051520 has 128 divisors (see below), whose sum is σ = 429598736640. Its totient is φ = 26955208704.

The previous prime is 117929051503. The next prime is 117929051563. The reversal of 117929051520 is 25150929711.

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

It is a super-2 number, since 2×117929051520² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 4373802 + ... + 4400681.

It is an arithmetic number, because the mean of its divisors is an integer number (3356240130).

Almost surely, 2^117929051520 is an apocalyptic number.

117929051520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117929051520 is an abundant number, since it is smaller than the sum of its proper divisors (311669685120).

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

117929051520 is an equidigital number, since it uses as much as digits as its factorization.

117929051520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8774512 (or 8774500 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 42.

The spelling of 117929051520 in words is "one hundred seventeen billion, nine hundred twenty-nine million, fifty-one thousand, five hundred twenty".