18380654982 has 12 divisors (see below), whose sum is σ = 39824752500. Its totient is φ = 6126884988.

The previous prime is 18380654977. The next prime is 18380654989. The reversal of 18380654982 is 28945608381.

18380654982 is a `hidden beast` number, since 18 + 3 + 8 + 0 + 6 + 549 + 82 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18380654989) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510573732 + ... + 510573767.

It is an arithmetic number, because the mean of its divisors is an integer number (3318729375).

Almost surely, 2^18380654982 is an apocalyptic number.

18380654982 is an abundant number, since it is smaller than the sum of its proper divisors (21444097518).

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

18380654982 is a wasteful number, since it uses less digits than its factorization.

18380654982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021147507 (or 1021147504 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 18380654982 in words is "eighteen billion, three hundred eighty million, six hundred fifty-four thousand, nine hundred eighty-two".