12744742788 has 36 divisors (see below), whose sum is σ = 32229794688. Its totient is φ = 4246412400.

The previous prime is 12744742763. The next prime is 12744742793. The reversal of 12744742788 is 88724744721.

12744742788 is a `hidden beast` number, since 1 + 2 + 74 + 474 + 27 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 9345 + ... + 159927.

Almost surely, 2^12744742788 is an apocalyptic number.

12744742788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12744742788 is an abundant number, since it is smaller than the sum of its proper divisors (19485051900).

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

12744742788 is a wasteful number, since it uses less digits than its factorization.

12744742788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152944 (or 152939 counting only the distinct ones).

The product of its digits is 5619712, while the sum is 54.

The spelling of 12744742788 in words is "twelve billion, seven hundred forty-four million, seven hundred forty-two thousand, seven hundred eighty-eight".