117845011679658 has 64 divisors (see below), whose sum is σ = 248002751203200. Its totient is φ = 37281457785600.

The previous prime is 117845011679627. The next prime is 117845011679699. The reversal of 117845011679658 is 856976110548711.

It is a junction number, because it is equal to n+sod(n) for n = 117845011679592 and 117845011679601.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21678241 + ... + 26563812.

It is an arithmetic number, because the mean of its divisors is an integer number (3875042987550).

Almost surely, 2^{117845011679658} is an apocalyptic number.

117845011679658 is an abundant number, since it is smaller than the sum of its proper divisors (130157739523542).

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

117845011679658 is a wasteful number, since it uses less digits than its factorization.

117845011679658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48242327.

The product of its (nonzero) digits is 101606400, while the sum is 69.

The spelling of 117845011679658 in words is "one hundred seventeen trillion, eight hundred forty-five billion, eleven million, six hundred seventy-nine thousand, six hundred fifty-eight".