18755425920 has 768 divisors, whose sum is σ = 79182028800. Its totient is φ = 3686031360.

The previous prime is 18755425919. The next prime is 18755425951. The reversal of 18755425920 is 2952455781.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 18755425920.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 30898257 + ... + 30898863.

It is an arithmetic number, because the mean of its divisors is an integer number (103101600).

Almost surely, 2^18755425920 is an apocalyptic number.

18755425920 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 18755425920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39591014400).

18755425920 is an abundant number, since it is smaller than the sum of its proper divisors (60426602880).

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

18755425920 is a wasteful number, since it uses less digits than its factorization.

18755425920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 48.

The spelling of 18755425920 in words is "eighteen billion, seven hundred fifty-five million, four hundred twenty-five thousand, nine hundred twenty".