18907882146828 has 72 divisors (see below), whose sum is σ = 49575257244240. Its totient is φ = 6301336654080.

The previous prime is 18907882146817. The next prime is 18907882146913. The reversal of 18907882146828 is 82864128870981.

18907882146828 is a `hidden beast` number, since 1 + 8 + 90 + 78 + 8 + 2 + 1 + 468 + 2 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2762688 + ... + 6741528.

Almost surely, 2^{18907882146828} is an apocalyptic number.

18907882146828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18907882146828 is an abundant number, since it is smaller than the sum of its proper divisors (30667375097412).

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

18907882146828 is a wasteful number, since it uses less digits than its factorization.

18907882146828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3983749 (or 3983735 counting only the distinct ones).

The product of its (nonzero) digits is 198180864, while the sum is 72.

The spelling of 18907882146828 in words is "eighteen trillion, nine hundred seven billion, eight hundred eighty-two million, one hundred forty-six thousand, eight hundred twenty-eight".