18782969782860 has 144 divisors (see below), whose sum is σ = 59690717678592. Its totient is φ = 4774871376000.

The previous prime is 18782969782859. The next prime is 18782969782901. The reversal of 18782969782860 is 6828796928781.

18782969782860 is a `hidden beast` number, since 187 + 8 + 2 + 96 + 9 + 78 + 286 + 0 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 18782969782860.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24746466 + ... + 25494185.

It is an arithmetic number, because the mean of its divisors is an integer number (414518872768).

Almost surely, 2^{18782969782860} is an apocalyptic number.

18782969782860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18782969782860 is an abundant number, since it is smaller than the sum of its proper divisors (40907747895732).

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

18782969782860 is a wasteful number, since it uses less digits than its factorization.

18782969782860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50240764 (or 50240759 counting only the distinct ones).

The product of its (nonzero) digits is 2341011456, while the sum is 81.

The spelling of 18782969782860 in words is "eighteen trillion, seven hundred eighty-two billion, nine hundred sixty-nine million, seven hundred eighty-two thousand, eight hundred sixty".