118492198531 has 8 divisors (see below), whose sum is σ = 135423083520. Its totient is φ = 101562170568.

The previous prime is 118492198523. The next prime is 118492198579. The reversal of 118492198531 is 135891294811.

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

It is a cyclic number.

It is not a de Polignac number, because 118492198531 - 2³ = 118492198523 is a prime.

It is a super-2 number, since 2×118492198531² (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 (118492198501) 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, 115950 + ... + 500428.

It is an arithmetic number, because the mean of its divisors is an integer number (16927885440).

Almost surely, 2^118492198531 is an apocalyptic number.

118492198531 is a deficient number, since it is larger than the sum of its proper divisors (16930884989).

118492198531 is an equidigital number, since it uses as much as digits as its factorization.

118492198531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428513.

The product of its digits is 622080, while the sum is 52.

The spelling of 118492198531 in words is "one hundred eighteen billion, four hundred ninety-two million, one hundred ninety-eight thousand, five hundred thirty-one".