18620844192 has 192 divisors, whose sum is σ = 57610828800. Its totient is φ = 5831147520.

The previous prime is 18620844133. The next prime is 18620844217. The reversal of 18620844192 is 29144802681.

18620844192 is a `hidden beast` number, since 1 + 8 + 620 + 8 + 4 + 4 + 19 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12939409 + ... + 12940847.

It is an arithmetic number, because the mean of its divisors is an integer number (300056400).

Almost surely, 2^18620844192 is an apocalyptic number.

18620844192 is a gapful number since it is divisible by the number (12) 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 18620844192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28805414400).

18620844192 is an abundant number, since it is smaller than the sum of its proper divisors (38989984608).

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

18620844192 is a wasteful number, since it uses less digits than its factorization.

18620844192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356 (or 2342 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

It can be divided in two parts, 186208 and 44192, that added together give a square (230400 = 480²).

The spelling of 18620844192 in words is "eighteen billion, six hundred twenty million, eight hundred forty-four thousand, one hundred ninety-two".