117780255840 has 96 divisors (see below), whose sum is σ = 399546889056. Its totient is φ = 28992061440.

The previous prime is 117780255779. The next prime is 117780255851. The reversal of 117780255840 is 48552087711.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×117780255840³ (a number of 34 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 117780255840.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9431281 + ... + 9443760.

It is an arithmetic number, because the mean of its divisors is an integer number (4161946761).

Almost surely, 2^117780255840 is an apocalyptic number.

117780255840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117780255840 is an abundant number, since it is smaller than the sum of its proper divisors (281766633216).

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

117780255840 is a wasteful number, since it uses less digits than its factorization.

117780255840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18875072 (or 18875064 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 48.

The spelling of 117780255840 in words is "one hundred seventeen billion, seven hundred eighty million, two hundred fifty-five thousand, eight hundred forty".