18977331282 has 64 divisors (see below), whose sum is σ = 47707398144. Its totient is φ = 4898514240.

The previous prime is 18977331277. The next prime is 18977331301. The reversal of 18977331282 is 28213377981.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344094 + ... + 395417.

It is an arithmetic number, because the mean of its divisors is an integer number (745428096).

Almost surely, 2^18977331282 is an apocalyptic number.

18977331282 is an abundant number, since it is smaller than the sum of its proper divisors (28730066862).

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

18977331282 is a wasteful number, since it uses less digits than its factorization.

18977331282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739583.

The product of its digits is 1016064, while the sum is 51.

The spelling of 18977331282 in words is "eighteen billion, nine hundred seventy-seven million, three hundred thirty-one thousand, two hundred eighty-two".