117872717381020 has 96 divisors (see below), whose sum is σ = 297788445803520. Its totient is φ = 38285867358720.

The previous prime is 117872717380981. The next prime is 117872717381057. The reversal of 117872717381020 is 20183717278711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185182705 + ... + 185818135.

It is an arithmetic number, because the mean of its divisors is an integer number (3101962977120).

Almost surely, 2^{117872717381020} is an apocalyptic number.

117872717381020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117872717381020 is an abundant number, since it is smaller than the sum of its proper divisors (179915728422500).

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

117872717381020 is a wasteful number, since it uses less digits than its factorization.

117872717381020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705203 (or 705201 counting only the distinct ones).

The product of its (nonzero) digits is 1843968, while the sum is 55.

The spelling of 117872717381020 in words is "one hundred seventeen trillion, eight hundred seventy-two billion, seven hundred seventeen million, three hundred eighty-one thousand, twenty".