18914756489496 has 224 divisors, whose sum is σ = 60803425612800. Its totient is φ = 5401210921920.

The previous prime is 18914756489483. The next prime is 18914756489501. The reversal of 18914756489496 is 69498465741981.

18914756489496 is a `hidden beast` number, since 1 + 8 + 9 + 1 + 4 + 7 + 564 + 8 + 9 + 49 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 73804345 + ... + 74060183.

Almost surely, 2^{18914756489496} 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 18914756489496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30401712806400).

18914756489496 is an abundant number, since it is smaller than the sum of its proper divisors (41888669123304).

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

18914756489496 is a wasteful number, since it uses less digits than its factorization.

18914756489496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257681 (or 257662 counting only the distinct ones).

The product of its digits is 3762339840, while the sum is 81.

The spelling of 18914756489496 in words is "eighteen trillion, nine hundred fourteen billion, seven hundred fifty-six million, four hundred eighty-nine thousand, four hundred ninety-six".