117878341958 has 24 divisors (see below), whose sum is σ = 196639871328. Its totient is φ = 52934967072.

The previous prime is 117878341949. The next prime is 117878341981. The reversal of 117878341958 is 859143878711.

It is a self number, because there is not a number n which added to its sum of digits gives 117878341958.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4700366 + ... + 4725377.

It is an arithmetic number, because the mean of its divisors is an integer number (8193327972).

Almost surely, 2^117878341958 is an apocalyptic number.

117878341958 is a deficient number, since it is larger than the sum of its proper divisors (78761529370).

117878341958 is a wasteful number, since it uses less digits than its factorization.

117878341958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9425808 (or 9425795 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 62.

The spelling of 117878341958 in words is "one hundred seventeen billion, eight hundred seventy-eight million, three hundred forty-one thousand, nine hundred fifty-eight".