78118958 has 8 divisors (see below), whose sum is σ = 117221160. Its totient is φ = 39045240.

The previous prime is 78118919. The next prime is 78118967. The reversal of 78118958 is 85981187.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78118958² = 12205143198011528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2153 + ... + 12683.

It is an arithmetic number, because the mean of its divisors is an integer number (14652645).

Almost surely, 2^78118958 is an apocalyptic number.

78118958 is a deficient number, since it is larger than the sum of its proper divisors (39102202).

78118958 is a wasteful number, since it uses less digits than its factorization.

78118958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14242.

The product of its digits is 161280, while the sum is 47.

The square root of 78118958 is about 8838.4929710896. The cubic root of 78118958 is about 427.4829659321.

The spelling of 78118958 in words is "seventy-eight million, one hundred eighteen thousand, nine hundred fifty-eight".