118939556477 has 4 divisors (see below), whose sum is σ = 135930921696. Its totient is φ = 101948191260.

The previous prime is 118939556447. The next prime is 118939556503. The reversal of 118939556477 is 774655939811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 118939556477 - 2⁸ = 118939556221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118939556447) 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, 8495682599 + ... + 8495682612.

It is an arithmetic number, because the mean of its divisors is an integer number (33982730424).

Almost surely, 2^118939556477 is an apocalyptic number.

It is an amenable number.

118939556477 is a deficient number, since it is larger than the sum of its proper divisors (16991365219).

118939556477 is an equidigital number, since it uses as much as digits as its factorization.

118939556477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16991365218.

The product of its digits is 57153600, while the sum is 65.

The spelling of 118939556477 in words is "one hundred eighteen billion, nine hundred thirty-nine million, five hundred fifty-six thousand, four hundred seventy-seven".