18866294132 has 24 divisors (see below), whose sum is σ = 37835422464. Its totient is φ = 8063518752.

The previous prime is 18866294113. The next prime is 18866294141. The reversal of 18866294132 is 23149266881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 907703 + ... + 928254.

It is an arithmetic number, because the mean of its divisors is an integer number (1576475936).

Almost surely, 2^18866294132 is an apocalyptic number.

It is an amenable number.

18866294132 is an abundant number, since it is smaller than the sum of its proper divisors (18969128332).

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

18866294132 is a wasteful number, since it uses less digits than its factorization.

18866294132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836335 (or 1836333 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The spelling of 18866294132 in words is "eighteen billion, eight hundred sixty-six million, two hundred ninety-four thousand, one hundred thirty-two".