5771646612961 has 2 divisors, whose sum is σ = 5771646612962. Its totient is φ = 5771646612960.

The previous prime is 5771646612883. The next prime is 5771646612967. The reversal of 5771646612961 is 1692166461775.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5738420250000 + 33226362961 = 2395500^2 + 182281^2 .

It is a cyclic number.

It is not a de Polignac number, because 5771646612961 - 2¹⁷ = 5771646481889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5771646612961.

It is not a weakly prime, because it can be changed into another prime (5771646612967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2885823306480 + 2885823306481.

It is an arithmetic number, because the mean of its divisors is an integer number (2885823306481).

Almost surely, 2^{5771646612961} is an apocalyptic number.

It is an amenable number.

5771646612961 is a deficient number, since it is larger than the sum of its proper divisors (1).

5771646612961 is an equidigital number, since it uses as much as digits as its factorization.

5771646612961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22861440, while the sum is 61.

The spelling of 5771646612961 in words is "five trillion, seven hundred seventy-one billion, six hundred forty-six million, six hundred twelve thousand, nine hundred sixty-one".