18888041613472 has 96 divisors (see below), whose sum is σ = 38166628263120. Its totient is φ = 9195835883520.

The previous prime is 18888041613457. The next prime is 18888041613509. The reversal of 18888041613472 is 27431614088881.

It can be written as a sum of positive squares in 8 ways, for example, as 9964653875856 + 8923387737616 = 3156684^2 + 2987204^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18888041613472.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2892942304 + ... + 2892948832.

Almost surely, 2^{18888041613472} 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 18888041613472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19083314131560).

18888041613472 is an abundant number, since it is smaller than the sum of its proper divisors (19278586649648).

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

18888041613472 is a wasteful number, since it uses less digits than its factorization.

18888041613472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10514 (or 10506 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 61.

The spelling of 18888041613472 in words is "eighteen trillion, eight hundred eighty-eight billion, forty-one million, six hundred thirteen thousand, four hundred seventy-two".