561573131427067 has 4 divisors (see below), whose sum is σ = 561593530783720. Its totient is φ = 561552732070416.

The previous prime is 561573131427053. The next prime is 561573131427073. The reversal of 561573131427067 is 760724131375165.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 561573131427067 - 2⁴³ = 552777038404859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561573131427767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10199637033 + ... + 10199692090.

It is an arithmetic number, because the mean of its divisors is an integer number (140398382695930).

Almost surely, 2^{561573131427067} is an apocalyptic number.

561573131427067 is a deficient number, since it is larger than the sum of its proper divisors (20399356653).

561573131427067 is a wasteful number, since it uses less digits than its factorization.

561573131427067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20399356652.

The product of its (nonzero) digits is 22226400, while the sum is 58.

The spelling of 561573131427067 in words is "five hundred sixty-one trillion, five hundred seventy-three billion, one hundred thirty-one million, four hundred twenty-seven thousand, sixty-seven".