117531623730 has 64 divisors (see below), whose sum is σ = 289380014208. Its totient is φ = 30539804160.

The previous prime is 117531623711. The next prime is 117531623747. The reversal of 117531623730 is 37326135711.

It is a happy number.

It is a super-2 number, since 2×117531623730² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 104307 + ... + 495926.

It is an arithmetic number, because the mean of its divisors is an integer number (4521562722).

Almost surely, 2^117531623730 is an apocalyptic number.

117531623730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117531623730 is an abundant number, since it is smaller than the sum of its proper divisors (171848390478).

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

117531623730 is a wasteful number, since it uses less digits than its factorization.

117531623730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600411.

The product of its (nonzero) digits is 79380, while the sum is 39.

The spelling of 117531623730 in words is "one hundred seventeen billion, five hundred thirty-one million, six hundred twenty-three thousand, seven hundred thirty".