574660417621 has 2 divisors, whose sum is σ = 574660417622. Its totient is φ = 574660417620.

The previous prime is 574660417619. The next prime is 574660417657. The reversal of 574660417621 is 126714066475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 543042243396 + 31618174225 = 736914^2 + 177815^2 .

It is a cyclic number.

It is not a de Polignac number, because 574660417621 - 2¹ = 574660417619 is a prime.

Together with 574660417619, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (574660415621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 287330208810 + 287330208811.

It is an arithmetic number, because the mean of its divisors is an integer number (287330208811).

Almost surely, 2^574660417621 is an apocalyptic number.

It is an amenable number.

574660417621 is a deficient number, since it is larger than the sum of its proper divisors (1).

574660417621 is an equidigital number, since it uses as much as digits as its factorization.

574660417621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 574660417621 in words is "five hundred seventy-four billion, six hundred sixty million, four hundred seventeen thousand, six hundred twenty-one".