564611981291 has 2 divisors, whose sum is σ = 564611981292. Its totient is φ = 564611981290.

The previous prime is 564611981287. The next prime is 564611981309. The reversal of 564611981291 is 192189116465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 564611981291 - 2² = 564611981287 is a prime.

It is not a weakly prime, because it can be changed into another prime (564611981201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282305990645 + 282305990646.

It is an arithmetic number, because the mean of its divisors is an integer number (282305990646).

Almost surely, 2^564611981291 is an apocalyptic number.

564611981291 is a deficient number, since it is larger than the sum of its proper divisors (1).

564611981291 is an equidigital number, since it uses as much as digits as its factorization.

564611981291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 53.

The spelling of 564611981291 in words is "five hundred sixty-four billion, six hundred eleven million, nine hundred eighty-one thousand, two hundred ninety-one".