18788018092722 has 96 divisors (see below), whose sum is σ = 43838038543104. Its totient is φ = 5793745190400.

The previous prime is 18788018092687. The next prime is 18788018092751. The reversal of 18788018092722 is 22729081088781.

18788018092722 is a `hidden beast` number, since 187 + 8 + 8 + 0 + 180 + 9 + 272 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 18788018092722.

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, 27417897 + ... + 28094787.

It is an arithmetic number, because the mean of its divisors is an integer number (456646234824).

Almost surely, 2^{18788018092722} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18788018092722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21919019271552).

18788018092722 is an abundant number, since it is smaller than the sum of its proper divisors (25050020450382).

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

18788018092722 is a wasteful number, since it uses less digits than its factorization.

18788018092722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678464 (or 678461 counting only the distinct ones).

The product of its (nonzero) digits is 14450688, while the sum is 63.

The spelling of 18788018092722 in words is "eighteen trillion, seven hundred eighty-eight billion, eighteen million, ninety-two thousand, seven hundred twenty-two".