118279581957 has 48 divisors (see below), whose sum is σ = 173627670528. Its totient is φ = 77583411360.

The previous prime is 118279581949. The next prime is 118279581961. The reversal of 118279581957 is 759185972811.

It is not a de Polignac number, because 118279581957 - 2³ = 118279581949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118279581894 and 118279581903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118279581557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96712048 + ... + 96713270.

It is an arithmetic number, because the mean of its divisors is an integer number (3617243136).

Almost surely, 2^118279581957 is an apocalyptic number.

It is an amenable number.

118279581957 is a deficient number, since it is larger than the sum of its proper divisors (55348088571).

118279581957 is a wasteful number, since it uses less digits than its factorization.

118279581957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990 (or 1987 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 63.

The spelling of 118279581957 in words is "one hundred eighteen billion, two hundred seventy-nine million, five hundred eighty-one thousand, nine hundred fifty-seven".