18642010146 has 32 divisors (see below), whose sum is σ = 39013974528. Its totient is φ = 5931169920.

The previous prime is 18642010109. The next prime is 18642010187. The reversal of 18642010146 is 64101024681.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672901 + ... + 700056.

It is an arithmetic number, because the mean of its divisors is an integer number (1219186704).

Almost surely, 2^18642010146 is an apocalyptic number.

18642010146 is an abundant number, since it is smaller than the sum of its proper divisors (20371964382).

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

18642010146 is a wasteful number, since it uses less digits than its factorization.

18642010146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373066.

The product of its (nonzero) digits is 9216, while the sum is 33.

The spelling of 18642010146 in words is "eighteen billion, six hundred forty-two million, ten thousand, one hundred forty-six".