18857763532 has 48 divisors (see below), whose sum is σ = 35113266720. Its totient is φ = 8845760000.

The previous prime is 18857763497. The next prime is 18857763539. The reversal of 18857763532 is 23536775881.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (18857763539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1185858 + ... + 1201654.

It is an arithmetic number, because the mean of its divisors is an integer number (731526390).

Almost surely, 2^18857763532 is an apocalyptic number.

It is an amenable number.

18857763532 is a deficient number, since it is larger than the sum of its proper divisors (16255503188).

18857763532 is a wasteful number, since it uses less digits than its factorization.

18857763532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16122 (or 16120 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 55.

The spelling of 18857763532 in words is "eighteen billion, eight hundred fifty-seven million, seven hundred sixty-three thousand, five hundred thirty-two".