18859145904632 has 16 divisors (see below), whose sum is σ = 38575525714200. Its totient is φ = 8572339047520.

The previous prime is 18859145904589. The next prime is 18859145904649. The reversal of 18859145904632 is 23640954195881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107154238007 + ... + 107154238182.

Almost surely, 2^{18859145904632} is an apocalyptic number.

It is an amenable number.

18859145904632 is an abundant number, since it is smaller than the sum of its proper divisors (19716379809568).

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

18859145904632 is a wasteful number, since it uses less digits than its factorization.

18859145904632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214308476206 (or 214308476202 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 65.

The spelling of 18859145904632 in words is "eighteen trillion, eight hundred fifty-nine billion, one hundred forty-five million, nine hundred four thousand, six hundred thirty-two".