18819786947160 has 64 divisors (see below), whose sum is σ = 56695592563200. Its totient is φ = 4997611477376.

The previous prime is 18819786947149. The next prime is 18819786947189. The reversal of 18819786947160 is 6174968791881.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328070814 + ... + 328128173.

It is an arithmetic number, because the mean of its divisors is an integer number (885868633800).

Almost surely, 2^{18819786947160} is an apocalyptic number.

18819786947160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18819786947160 is an abundant number, since it is smaller than the sum of its proper divisors (37875805616040).

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

18819786947160 is a wasteful number, since it uses less digits than its factorization.

18819786947160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656199240 (or 656199236 counting only the distinct ones).

The product of its (nonzero) digits is 292626432, while the sum is 75.

The spelling of 18819786947160 in words is "eighteen trillion, eight hundred nineteen billion, seven hundred eighty-six million, nine hundred forty-seven thousand, one hundred sixty".