118571136979 has 4 divisors (see below), whose sum is σ = 119063133640. Its totient is φ = 118079140320.

The previous prime is 118571136977. The next prime is 118571137001. The reversal of 118571136979 is 979631175811.

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

It is a cyclic number.

It is not a de Polignac number, because 118571136979 - 2¹ = 118571136977 is a prime.

It is a super-2 number, since 2×118571136979² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118571136977) 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, 245997969 + ... + 245998450.

It is an arithmetic number, because the mean of its divisors is an integer number (29765783410).

Almost surely, 2^118571136979 is an apocalyptic number.

118571136979 is a deficient number, since it is larger than the sum of its proper divisors (491996661).

118571136979 is an equidigital number, since it uses as much as digits as its factorization.

118571136979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491996660.

The product of its digits is 2857680, while the sum is 58.

The spelling of 118571136979 in words is "one hundred eighteen billion, five hundred seventy-one million, one hundred thirty-six thousand, nine hundred seventy-nine".