12009529744 has 15 divisors (see below), whose sum is σ = 23269313217. Its totient is φ = 6004545696.

The previous prime is 12009529739. The next prime is 12009529751. The reversal of 12009529744 is 44792590021.

The square root of 12009529744 is 109588.

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

It can be written as a sum of positive squares in only one way, i.e., 8585875600 + 3423654144 = 92660^2 + 58512^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12009529744.

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, 424654 + ... + 452050.

Almost surely, 2^12009529744 is an apocalyptic number.

12009529744 is the 109588-th square number.

It is an amenable number.

12009529744 is a deficient number, since it is larger than the sum of its proper divisors (11259783473).

12009529744 is an frugal number, since it uses more digits than its factorization.

12009529744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54802 (or 27399 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 12009529744 in words is "twelve billion, nine million, five hundred twenty-nine thousand, seven hundred forty-four".