18984722042880 has 2496 divisors, whose sum is σ = 78211117393920. Its totient is φ = 4414478745600.

The previous prime is 18984722042851. The next prime is 18984722042893. The reversal of 18984722042880 is 8824022748981.

18984722042880 is a `hidden beast` number, since 1 + 8 + 9 + 84 + 72 + 204 + 288 + 0 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 168006389704 + ... + 168006389816.

Almost surely, 2^{18984722042880} is an apocalyptic number.

18984722042880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18984722042880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39105558696960).

18984722042880 is an abundant number, since it is smaller than the sum of its proper divisors (59226395351040).

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

18984722042880 is an equidigital number, since it uses as much as digits as its factorization.

18984722042880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 33030144, while the sum is 63.

The spelling of 18984722042880 in words is "eighteen trillion, nine hundred eighty-four billion, seven hundred twenty-two million, forty-two thousand, eight hundred eighty".