117765015885 has 48 divisors (see below), whose sum is σ = 230930481600. Its totient is φ = 57098183040.

The previous prime is 117765015881. The next prime is 117765015899. The reversal of 117765015885 is 588510567711.

117765015885 is a `hidden beast` number, since 1 + 1 + 7 + 7 + 6 + 50 + 1 + 588 + 5 = 666.

It is not a de Polignac number, because 117765015885 - 2² = 117765015881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117765015881) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4392360 + ... + 4419089.

It is an arithmetic number, because the mean of its divisors is an integer number (4811051700).

Almost surely, 2^117765015885 is an apocalyptic number.

117765015885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117765015885 is a deficient number, since it is larger than the sum of its proper divisors (113165465715).

117765015885 is an equidigital number, since it uses as much as digits as its factorization.

117765015885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8811480 (or 8811468 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 54.

The spelling of 117765015885 in words is "one hundred seventeen billion, seven hundred sixty-five million, fifteen thousand, eight hundred eighty-five".