12009744572 has 36 divisors (see below), whose sum is σ = 24792781104. Its totient is φ = 5074534080.

The previous prime is 12009744569. The next prime is 12009744601. The reversal of 12009744572 is 27544790021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 417593 + ... + 445424.

It is an arithmetic number, because the mean of its divisors is an integer number (688688364).

Almost surely, 2^12009744572 is an apocalyptic number.

It is an amenable number.

12009744572 is an abundant number, since it is smaller than the sum of its proper divisors (12783036532).

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

12009744572 is a wasteful number, since it uses less digits than its factorization.

12009744572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863106 (or 863097 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 12009744572 in words is "twelve billion, nine million, seven hundred forty-four thousand, five hundred seventy-two".