118157756817 has 8 divisors (see below), whose sum is σ = 157550912320. Its totient is φ = 78768219600.

The previous prime is 118157756813. The next prime is 118157756831. The reversal of 118157756817 is 718657751811.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 118157756817 - 2² = 118157756813 is a prime.

It is a super-2 number, since 2×118157756817² (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 (118157756813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 827434 + ... + 959667.

It is an arithmetic number, because the mean of its divisors is an integer number (19693864040).

Almost surely, 2^118157756817 is an apocalyptic number.

It is an amenable number.

118157756817 is a deficient number, since it is larger than the sum of its proper divisors (39393155503).

118157756817 is a wasteful number, since it uses less digits than its factorization.

118157756817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809143.

The product of its digits is 3292800, while the sum is 57.

The spelling of 118157756817 in words is "one hundred eighteen billion, one hundred fifty-seven million, seven hundred fifty-six thousand, eight hundred seventeen".