117387765859990 has 32 divisors (see below), whose sum is σ = 211440310848000. Its totient is φ = 46923486838368.

The previous prime is 117387765859963. The next prime is 117387765859997. The reversal of 117387765859990 is 99958567783711.

It is a junction number, because it is equal to n+sod(n) for n = 117387765859898 and 117387765859907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117387765859997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94792621 + ... + 96022999.

It is an arithmetic number, because the mean of its divisors is an integer number (6607509714000).

Almost surely, 2^{117387765859990} is an apocalyptic number.

117387765859990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117387765859990 is a deficient number, since it is larger than the sum of its proper divisors (94052544988010).

117387765859990 is a wasteful number, since it uses less digits than its factorization.

117387765859990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236804.

The product of its (nonzero) digits is 7201353600, while the sum is 85.

The spelling of 117387765859990 in words is "one hundred seventeen trillion, three hundred eighty-seven billion, seven hundred sixty-five million, eight hundred fifty-nine thousand, nine hundred ninety".