18563001368 has 32 divisors (see below), whose sum is σ = 38230444800. Its totient is φ = 8410694688.

The previous prime is 18563001341. The next prime is 18563001383. The reversal of 18563001368 is 86310036581.

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, 2651396 + ... + 2658387.

It is an arithmetic number, because the mean of its divisors is an integer number (1194701400).

Almost surely, 2^18563001368 is an apocalyptic number.

It is an amenable number.

18563001368 is an abundant number, since it is smaller than the sum of its proper divisors (19667443432).

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

18563001368 is a wasteful number, since it uses less digits than its factorization.

18563001368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5309831 (or 5309827 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 18563001368 in words is "eighteen billion, five hundred sixty-three million, one thousand, three hundred sixty-eight".