12811442797 has 16 divisors (see below), whose sum is σ = 13596488640. Its totient is φ = 12037638528.

The previous prime is 12811442737. The next prime is 12811442803. The reversal of 12811442797 is 79724411821.

It is a cyclic number.

It is not a de Polignac number, because 12811442797 - 2⁷ = 12811442669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12811442737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5170923 + ... + 5173399.

It is an arithmetic number, because the mean of its divisors is an integer number (849780540).

Almost surely, 2^12811442797 is an apocalyptic number.

It is an amenable number.

12811442797 is a deficient number, since it is larger than the sum of its proper divisors (785045843).

12811442797 is a wasteful number, since it uses less digits than its factorization.

12811442797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4620.

The product of its digits is 225792, while the sum is 46.

The spelling of 12811442797 in words is "twelve billion, eight hundred eleven million, four hundred forty-two thousand, seven hundred ninety-seven".