118831867545 has 64 divisors (see below), whose sum is σ = 199537228800. Its totient is φ = 60307752960.

The previous prime is 118831867489. The next prime is 118831867571. The reversal of 118831867545 is 545768138811.

It is not a de Polignac number, because 118831867545 - 2⁷ = 118831867417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21062925 + ... + 21068565.

It is an arithmetic number, because the mean of its divisors is an integer number (3117769200).

Almost surely, 2^118831867545 is an apocalyptic number.

118831867545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118831867545 is a deficient number, since it is larger than the sum of its proper divisors (80705361255).

118831867545 is a wasteful number, since it uses less digits than its factorization.

118831867545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6370.

The product of its digits is 6451200, while the sum is 57.

The spelling of 118831867545 in words is "one hundred eighteen billion, eight hundred thirty-one million, eight hundred sixty-seven thousand, five hundred forty-five".