12744404776 has 8 divisors (see below), whose sum is σ = 23895758970. Its totient is φ = 6372202384.

The previous prime is 12744404723. The next prime is 12744404779. The reversal of 12744404776 is 67740444721.

12744404776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10340856100 + 2403548676 = 101690^2 + 49026^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12744404776² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12744404779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 796525291 + ... + 796525306.

Almost surely, 2^12744404776 is an apocalyptic number.

It is an amenable number.

12744404776 is a deficient number, since it is larger than the sum of its proper divisors (11151354194).

12744404776 is a wasteful number, since it uses less digits than its factorization.

12744404776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593050603 (or 1593050599 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 46.

The spelling of 12744404776 in words is "twelve billion, seven hundred forty-four million, four hundred four thousand, seven hundred seventy-six".