18914756489495 has 16 divisors (see below), whose sum is σ = 23871965352192. Its totient is φ = 14367386542080.

The previous prime is 18914756489483. The next prime is 18914756489501. The reversal of 18914756489495 is 59498465741981.

It is a happy number.

It is not a de Polignac number, because 18914756489495 - 2²² = 18914752295191 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1151224682 + ... + 1151241111.

It is an arithmetic number, because the mean of its divisors is an integer number (1491997834512).

Almost surely, 2^{18914756489495} is an apocalyptic number.

18914756489495 is a deficient number, since it is larger than the sum of its proper divisors (4957208862697).

18914756489495 is a wasteful number, since it uses less digits than its factorization.

18914756489495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302465882.

The product of its digits is 3135283200, while the sum is 80.

The spelling of 18914756489495 in words is "eighteen trillion, nine hundred fourteen billion, seven hundred fifty-six million, four hundred eighty-nine thousand, four hundred ninety-five".