18842202720 has 768 divisors, whose sum is σ = 77728896000. Its totient is φ = 4213555200.

The previous prime is 18842202713. The next prime is 18842202733. The reversal of 18842202720 is 2720224881.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 37017826 + ... + 37018334.

It is an arithmetic number, because the mean of its divisors is an integer number (101209500).

Almost surely, 2^18842202720 is an apocalyptic number.

18842202720 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 18842202720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38864448000).

18842202720 is an abundant number, since it is smaller than the sum of its proper divisors (58886693280).

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

18842202720 is a wasteful number, since it uses less digits than its factorization.

18842202720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The spelling of 18842202720 in words is "eighteen billion, eight hundred forty-two million, two hundred two thousand, seven hundred twenty".