118564315878 has 8 divisors (see below), whose sum is σ = 237128631768. Its totient is φ = 39521438624.

The previous prime is 118564315873. The next prime is 118564315901. The reversal of 118564315878 is 878513465811.

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

118564315878 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118564315871) 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, 9880359651 + ... + 9880359662.

It is an arithmetic number, because the mean of its divisors is an integer number (29641078971).

Almost surely, 2^118564315878 is an apocalyptic number.

118564315878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118564315878 is a wasteful number, since it uses less digits than its factorization.

118564315878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19760719318.

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

The spelling of 118564315878 in words is "one hundred eighteen billion, five hundred sixty-four million, three hundred fifteen thousand, eight hundred seventy-eight".