118777818 has 16 divisors (see below), whose sum is σ = 239908896. Its totient is φ = 39200400.

The previous prime is 118777787. The next prime is 118777847. The reversal of 118777818 is 818777811.

It is a super-2 number, since 2×118777818² = 28216340097682248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97396 + ... + 98607.

It is an arithmetic number, because the mean of its divisors is an integer number (14994306).

Almost surely, 2^118777818 is an apocalyptic number.

118777818 is an abundant number, since it is smaller than the sum of its proper divisors (121131078).

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

118777818 is a wasteful number, since it uses less digits than its factorization.

118777818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196109.

The product of its digits is 175616, while the sum is 48.

The square root of 118777818 is about 10898.5236614874. The cubic root of 118777818 is about 491.5621641858.

The spelling of 118777818 in words is "one hundred eighteen million, seven hundred seventy-seven thousand, eight hundred eighteen".