117889562785 has 16 divisors (see below), whose sum is σ = 141783183360. Its totient is φ = 94101376320.

The previous prime is 117889562779. The next prime is 117889562803. The reversal of 117889562785 is 587265988711.

It is not a de Polignac number, because 117889562785 - 2⁵ = 117889562753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117889562785.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5235531 + ... + 5257999.

It is an arithmetic number, because the mean of its divisors is an integer number (8861448960).

Almost surely, 2^117889562785 is an apocalyptic number.

It is an amenable number.

117889562785 is a deficient number, since it is larger than the sum of its proper divisors (23893620575).

117889562785 is a wasteful number, since it uses less digits than its factorization.

117889562785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24768.

The product of its digits is 67737600, while the sum is 67.

The spelling of 117889562785 in words is "one hundred seventeen billion, eight hundred eighty-nine million, five hundred sixty-two thousand, seven hundred eighty-five".