118380814477 has 4 divisors (see below), whose sum is σ = 124611383680. Its totient is φ = 112150245276.

The previous prime is 118380814403. The next prime is 118380814493. The reversal of 118380814477 is 774418083811.

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 a de Polignac number, because none of the positive numbers 2^k-118380814477 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 (118380814577) 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, 3115284573 + ... + 3115284610.

It is an arithmetic number, because the mean of its divisors is an integer number (31152845920).

Almost surely, 2^118380814477 is an apocalyptic number.

It is an amenable number.

118380814477 is a deficient number, since it is larger than the sum of its proper divisors (6230569203).

118380814477 is an equidigital number, since it uses as much as digits as its factorization.

118380814477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6230569202.

The product of its (nonzero) digits is 1204224, while the sum is 52.

The spelling of 118380814477 in words is "one hundred eighteen billion, three hundred eighty million, eight hundred fourteen thousand, four hundred seventy-seven".