561843394322 has 64 divisors (see below), whose sum is σ = 1005330186240. Its totient is φ = 230435150400.

The previous prime is 561843394289. The next prime is 561843394367. The reversal of 561843394322 is 223493348165.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14357579 + ... + 14396657.

It is an arithmetic number, because the mean of its divisors is an integer number (15708284160).

Almost surely, 2^561843394322 is an apocalyptic number.

561843394322 is a deficient number, since it is larger than the sum of its proper divisors (443486791918).

561843394322 is a wasteful number, since it uses less digits than its factorization.

561843394322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39487.

The product of its digits is 3732480, while the sum is 50.

The spelling of 561843394322 in words is "five hundred sixty-one billion, eight hundred forty-three million, three hundred ninety-four thousand, three hundred twenty-two".