18888495712 has 48 divisors (see below), whose sum is σ = 38865046752. Its totient is φ = 9019310080.

The previous prime is 18888495701. The next prime is 18888495739. The reversal of 18888495712 is 21759488881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451758 + ... + 491794.

It is an arithmetic number, because the mean of its divisors is an integer number (809688474).

Almost surely, 2^18888495712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18888495712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19432523376).

18888495712 is an abundant number, since it is smaller than the sum of its proper divisors (19976551040).

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

18888495712 is a wasteful number, since it uses less digits than its factorization.

18888495712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40711 (or 40703 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 61.

The spelling of 18888495712 in words is "eighteen billion, eight hundred eighty-eight million, four hundred ninety-five thousand, seven hundred twelve".