11755517391424 has 21 divisors (see below), whose sum is σ = 23327409253267. Its totient is φ = 5877744981184.

The previous prime is 11755517391389. The next prime is 11755517391433. The reversal of 11755517391424 is 42419371555711.

The square root of 11755517391424 is 3428632.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 27214767 + ... + 27643345.

Almost surely, 2^{11755517391424} is an apocalyptic number.

11755517391424 is the 3428632-nd square number.

It is an amenable number.

11755517391424 is a deficient number, since it is larger than the sum of its proper divisors (11571891861843).

11755517391424 is an frugal number, since it uses more digits than its factorization.

11755517391424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857170 (or 428581 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 55.

The spelling of 11755517391424 in words is "eleven trillion, seven hundred fifty-five billion, five hundred seventeen million, three hundred ninety-one thousand, four hundred twenty-four".