561573131443283 has 2 divisors, whose sum is σ = 561573131443284. Its totient is φ = 561573131443282.

The previous prime is 561573131443277. The next prime is 561573131443351. The reversal of 561573131443283 is 382344131375165.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561573131443283 is a prime.

It is not a weakly prime, because it can be changed into another prime (561573131443213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280786565721641 + 280786565721642.

It is an arithmetic number, because the mean of its divisors is an integer number (280786565721642).

Almost surely, 2^{561573131443283} is an apocalyptic number.

561573131443283 is a deficient number, since it is larger than the sum of its proper divisors (1).

561573131443283 is an equidigital number, since it uses as much as digits as its factorization.

561573131443283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21772800, while the sum is 56.

The spelling of 561573131443283 in words is "five hundred sixty-one trillion, five hundred seventy-three billion, one hundred thirty-one million, four hundred forty-three thousand, two hundred eighty-three".