11999794821184 has 63 divisors (see below), whose sum is σ = 23885402225671. Its totient is φ = 5981482403840.

The previous prime is 11999794821167. The next prime is 11999794821197. The reversal of 11999794821184 is 48112849799911.

The square root of 11999794821184 is 3464072.

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

It can be written as a sum of positive squares in 4 ways, for example, as 9545183262784 + 2454611558400 = 3089528^2 + 1566720^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15768455364 + ... + 15768456124.

Almost surely, 2^{11999794821184} is an apocalyptic number.

11999794821184 is the 3464072-nd square number.

It is an amenable number.

11999794821184 is a deficient number, since it is larger than the sum of its proper divisors (11885607404487).

11999794821184 is an frugal number, since it uses more digits than its factorization.

11999794821184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672 (or 1332 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 73.

The spelling of 11999794821184 in words is "eleven trillion, nine hundred ninety-nine billion, seven hundred ninety-four million, eight hundred twenty-one thousand, one hundred eighty-four".