118613452991 has 24 divisors (see below), whose sum is σ = 131945788800. Its totient is φ = 106536545280.

The previous prime is 118613452981. The next prime is 118613453027. The reversal of 118613452991 is 199254316811.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-118613452991 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 (118613452931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7116035 + ... + 7132683.

It is an arithmetic number, because the mean of its divisors is an integer number (5497741200).

Almost surely, 2^118613452991 is an apocalyptic number.

118613452991 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

118613452991 is a deficient number, since it is larger than the sum of its proper divisors (13332335809).

118613452991 is a wasteful number, since it uses less digits than its factorization.

118613452991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17375 (or 17364 counting only the distinct ones).

The product of its digits is 466560, while the sum is 50.

The spelling of 118613452991 in words is "one hundred eighteen billion, six hundred thirteen million, four hundred fifty-two thousand, nine hundred ninety-one".