12742665236 has 24 divisors (see below), whose sum is σ = 26078015040. Its totient is φ = 5334138432.

The previous prime is 12742665223. The next prime is 12742665241. The reversal of 12742665236 is 63256624721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5290601 + ... + 5293008.

It is an arithmetic number, because the mean of its divisors is an integer number (1086583960).

Almost surely, 2^12742665236 is an apocalyptic number.

It is an amenable number.

12742665236 is an abundant number, since it is smaller than the sum of its proper divisors (13335349804).

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

12742665236 is a wasteful number, since it uses less digits than its factorization.

12742665236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10583663 (or 10583661 counting only the distinct ones).

The product of its digits is 725760, while the sum is 44.

The spelling of 12742665236 in words is "twelve billion, seven hundred forty-two million, six hundred sixty-five thousand, two hundred thirty-six".