18782380986 has 16 divisors (see below), whose sum is σ = 37567939968. Its totient is φ = 6260264000.

The previous prime is 18782380937. The next prime is 18782380987. The reversal of 18782380986 is 68908328781.

It is not an unprimeable number, because it can be changed into a prime (18782380987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51810 + ... + 200621.

It is an arithmetic number, because the mean of its divisors is an integer number (2347996248).

Almost surely, 2^18782380986 is an apocalyptic number.

18782380986 is an abundant number, since it is smaller than the sum of its proper divisors (18785558982).

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

18782380986 is a wasteful number, since it uses less digits than its factorization.

18782380986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264837.

The product of its (nonzero) digits is 9289728, while the sum is 60.

The spelling of 18782380986 in words is "eighteen billion, seven hundred eighty-two million, three hundred eighty thousand, nine hundred eighty-six".