118457878 has 16 divisors (see below), whose sum is σ = 221531904. Its totient is φ = 46152360.

The previous prime is 118457863. The next prime is 118457879. The reversal of 118457878 is 878754811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118457879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384450 + ... + 384757.

It is an arithmetic number, because the mean of its divisors is an integer number (13845744).

Almost surely, 2^118457878 is an apocalyptic number.

118457878 is a deficient number, since it is larger than the sum of its proper divisors (103074026).

118457878 is a wasteful number, since it uses less digits than its factorization.

118457878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769227.

The product of its digits is 501760, while the sum is 49.

The square root of 118457878 is about 10883.8356290418. The cubic root of 118457878 is about 491.1204099340.

The spelling of 118457878 in words is "one hundred eighteen million, four hundred fifty-seven thousand, eight hundred seventy-eight".