12744665690 has 16 divisors (see below), whose sum is σ = 22993632000. Its totient is φ = 5086036560.

The previous prime is 12744665669. The next prime is 12744665707. The reversal of 12744665690 is 9656644721.

It is a super-2 number, since 2×12744665690² (a number of 21 digits) contains 22 as substring.

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, 1474190 + ... + 1482809.

It is an arithmetic number, because the mean of its divisors is an integer number (1437102000).

Almost surely, 2^12744665690 is an apocalyptic number.

12744665690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12744665690 is a deficient number, since it is larger than the sum of its proper divisors (10248966310).

12744665690 is a wasteful number, since it uses less digits than its factorization.

12744665690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957437.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 12744665690 in words is "twelve billion, seven hundred forty-four million, six hundred sixty-five thousand, six hundred ninety".