561227845679 has 8 divisors (see below), whose sum is σ = 594278250768. Its totient is φ = 528181552000.

The previous prime is 561227845649. The next prime is 561227845691. The reversal of 561227845679 is 976548722165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561227845679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561227845649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 744572 + ... + 1294929.

It is an arithmetic number, because the mean of its divisors is an integer number (74284781346).

Almost surely, 2^561227845679 is an apocalyptic number.

561227845679 is a deficient number, since it is larger than the sum of its proper divisors (33050405089).

561227845679 is a wasteful number, since it uses less digits than its factorization.

561227845679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055705.

The product of its digits is 50803200, while the sum is 62.

The spelling of 561227845679 in words is "five hundred sixty-one billion, two hundred twenty-seven million, eight hundred forty-five thousand, six hundred seventy-nine".