12499432568 has 32 divisors (see below), whose sum is σ = 28194211200. Its totient is φ = 5074957152.

The previous prime is 12499432567. The next prime is 12499432573. The reversal of 12499432568 is 86523499421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12499432567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5872730 + ... + 5874857.

It is an arithmetic number, because the mean of its divisors is an integer number (881069100).

Almost surely, 2^12499432568 is an apocalyptic number.

It is an amenable number.

12499432568 is an abundant number, since it is smaller than the sum of its proper divisors (15694778632).

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

12499432568 is a wasteful number, since it uses less digits than its factorization.

12499432568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11747619 (or 11747615 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 53.

The spelling of 12499432568 in words is "twelve billion, four hundred ninety-nine million, four hundred thirty-two thousand, five hundred sixty-eight".