18935245809324 has 144 divisors (see below), whose sum is σ = 52963481290720. Its totient is φ = 5666150983680.

The previous prime is 18935245809307. The next prime is 18935245809331. The reversal of 18935245809324 is 42390854253981.

18935245809324 is a `hidden beast` number, since 1 + 8 + 9 + 3 + 5 + 24 + 580 + 9 + 3 + 24 = 666.

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, 37480644 + ... + 37982484.

Almost surely, 2^{18935245809324} 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 18935245809324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26481740645360).

18935245809324 is an abundant number, since it is smaller than the sum of its proper divisors (34028235481396).

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

18935245809324 is a wasteful number, since it uses less digits than its factorization.

18935245809324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504080 (or 504075 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 63.

The spelling of 18935245809324 in words is "eighteen trillion, nine hundred thirty-five billion, two hundred forty-five million, eight hundred nine thousand, three hundred twenty-four".