100684436818 has 64 divisors (see below), whose sum is σ = 178172881920. Its totient is φ = 41783040000.

The previous prime is 100684436813. The next prime is 100684436843. The reversal of 100684436818 is 818634486001.

It is not an unprimeable number, because it can be changed into a prime (100684436813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25162818 + ... + 25166818.

It is an arithmetic number, because the mean of its divisors is an integer number (2783951280).

Almost surely, 2^100684436818 is an apocalyptic number.

100684436818 is a deficient number, since it is larger than the sum of its proper divisors (77488445102).

100684436818 is a wasteful number, since it uses less digits than its factorization.

100684436818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523.

The product of its (nonzero) digits is 884736, while the sum is 49.

The spelling of 100684436818 in words is "one hundred billion, six hundred eighty-four million, four hundred thirty-six thousand, eight hundred eighteen".