12988957794771 has 128 divisors (see below), whose sum is σ = 20991596953600. Its totient is φ = 6988811258880.

The previous prime is 12988957794767. The next prime is 12988957794803. The reversal of 12988957794771 is 17749775988921.

12988957794771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12988957794771 - 2² = 12988957794767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12988957794751) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1837449825 + ... + 1837456893.

It is an arithmetic number, because the mean of its divisors is an integer number (163996851200).

Almost surely, 2^{12988957794771} is an apocalyptic number.

12988957794771 is a deficient number, since it is larger than the sum of its proper divisors (8002639158829).

12988957794771 is a wasteful number, since it uses less digits than its factorization.

12988957794771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7689.

The product of its digits is 4480842240, while the sum is 84.

The spelling of 12988957794771 in words is "twelve trillion, nine hundred eighty-eight billion, nine hundred fifty-seven million, seven hundred ninety-four thousand, seven hundred seventy-one".