5771646612891 has 6 divisors (see below), whose sum is σ = 8336822885300. Its totient is φ = 3847764408588.

The previous prime is 5771646612883. The next prime is 5771646612961. The reversal of 5771646612891 is 1982166461775.

5771646612891 is a `hidden beast` number, since 5 + 7 + 7 + 1 + 6 + 4 + 6 + 612 + 8 + 9 + 1 = 666.

It is not a de Polignac number, because 5771646612891 - 2³ = 5771646612883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5771646612191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 320647034041 + ... + 320647034058.

Almost surely, 2^{5771646612891} is an apocalyptic number.

5771646612891 is a deficient number, since it is larger than the sum of its proper divisors (2565176272409).

5771646612891 is a wasteful number, since it uses less digits than its factorization.

5771646612891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641294068105 (or 641294068102 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The spelling of 5771646612891 in words is "five trillion, seven hundred seventy-one billion, six hundred forty-six million, six hundred twelve thousand, eight hundred ninety-one".