12049894132 has 12 divisors (see below), whose sum is σ = 21115398976. Its totient is φ = 6016923000.

The previous prime is 12049894111. The next prime is 12049894193. The reversal of 12049894132 is 23149894021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2002638 + ... + 2008645.

Almost surely, 2^12049894132 is an apocalyptic number.

It is an amenable number.

12049894132 is a deficient number, since it is larger than the sum of its proper divisors (9065504844).

12049894132 is a wasteful number, since it uses less digits than its factorization.

12049894132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012038 (or 4012036 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 12049894132 in words is "twelve billion, forty-nine million, eight hundred ninety-four thousand, one hundred thirty-two".