561322361447 has 4 divisors (see below), whose sum is σ = 564766057080. Its totient is φ = 557878665816.

The previous prime is 561322361417. The next prime is 561322361459. The reversal of 561322361447 is 744163223165.

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 561322361447 - 2³⁴ = 544142492263 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 561322361398 and 561322361407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561322361417) 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, 1721847572 + ... + 1721847897.

It is an arithmetic number, because the mean of its divisors is an integer number (141191514270).

Almost surely, 2^561322361447 is an apocalyptic number.

561322361447 is a deficient number, since it is larger than the sum of its proper divisors (3443695633).

561322361447 is a wasteful number, since it uses less digits than its factorization.

561322361447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3443695632.

The product of its digits is 725760, while the sum is 44.

The spelling of 561322361447 in words is "five hundred sixty-one billion, three hundred twenty-two million, three hundred sixty-one thousand, four hundred forty-seven".