118539899057 has 4 divisors (see below), whose sum is σ = 120776500980. Its totient is φ = 116303297136.

The previous prime is 118539899003. The next prime is 118539899143. The reversal of 118539899057 is 750998935811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81705077281 + 36834821776 = 285841^2 + 191924^2 .

It is a cyclic number.

It is not a de Polignac number, because 118539899057 - 2⁸ = 118539898801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118539898984 and 118539899002.

It is not an unprimeable number, because it can be changed into a prime (118539899557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1118300882 + ... + 1118300987.

It is an arithmetic number, because the mean of its divisors is an integer number (30194125245).

Almost surely, 2^118539899057 is an apocalyptic number.

It is an amenable number.

118539899057 is a deficient number, since it is larger than the sum of its proper divisors (2236601923).

118539899057 is an equidigital number, since it uses as much as digits as its factorization.

118539899057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236601922.

The product of its (nonzero) digits is 24494400, while the sum is 65.

The spelling of 118539899057 in words is "one hundred eighteen billion, five hundred thirty-nine million, eight hundred ninety-nine thousand, fifty-seven".