117638487365 has 64 divisors (see below), whose sum is σ = 176074752000. Its totient is φ = 73629699840.

The previous prime is 117638487361. The next prime is 117638487457. The reversal of 117638487365 is 563784836711.

It is not a de Polignac number, because 117638487365 - 2² = 117638487361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117638487361) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4708376 + ... + 4733294.

It is an arithmetic number, because the mean of its divisors is an integer number (2751168000).

Almost surely, 2^117638487365 is an apocalyptic number.

It is an amenable number.

117638487365 is a deficient number, since it is larger than the sum of its proper divisors (58436264635).

117638487365 is a wasteful number, since it uses less digits than its factorization.

117638487365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25210.

The product of its digits is 20321280, while the sum is 59.

The spelling of 117638487365 in words is "one hundred seventeen billion, six hundred thirty-eight million, four hundred eighty-seven thousand, three hundred sixty-five".