574075566671021 has 2 divisors, whose sum is σ = 574075566671022. Its totient is φ = 574075566671020.

The previous prime is 574075566670997. The next prime is 574075566671051. The reversal of 574075566671021 is 120176665570475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 573570167955625 + 505398715396 = 23949325^2 + 710914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-574075566671021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (574075566671051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 287037783335510 + 287037783335511.

It is an arithmetic number, because the mean of its divisors is an integer number (287037783335511).

Almost surely, 2^{574075566671021} is an apocalyptic number.

It is an amenable number.

574075566671021 is a deficient number, since it is larger than the sum of its proper divisors (1).

574075566671021 is an equidigital number, since it uses as much as digits as its factorization.

574075566671021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 74088000, while the sum is 62.

The spelling of 574075566671021 in words is "five hundred seventy-four trillion, seventy-five billion, five hundred sixty-six million, six hundred seventy-one thousand, twenty-one".