100918391874 has 32 divisors (see below), whose sum is σ = 202758278976. Its totient is φ = 33485998080.

The previous prime is 100918391839. The next prime is 100918391879. The reversal of 100918391874 is 478193819001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (100918391879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3828889 + ... + 3855155.

It is an arithmetic number, because the mean of its divisors is an integer number (6336196218).

Almost surely, 2^100918391874 is an apocalyptic number.

100918391874 is an abundant number, since it is smaller than the sum of its proper divisors (101839887102).

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

100918391874 is a wasteful number, since it uses less digits than its factorization.

100918391874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29170.

The product of its (nonzero) digits is 435456, while the sum is 51.

The spelling of 100918391874 in words is "one hundred billion, nine hundred eighteen million, three hundred ninety-one thousand, eight hundred seventy-four".