561334425751 has 32 divisors (see below), whose sum is σ = 669552168960. Its totient is φ = 464619302400.

The previous prime is 561334425739. The next prime is 561334425781. The reversal of 561334425751 is 157524433165.

It is a de Polignac number, because none of the positive numbers 2^k-561334425751 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 (561334425781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16846830 + ... + 16880116.

It is an arithmetic number, because the mean of its divisors is an integer number (20923505280).

Almost surely, 2^561334425751 is an apocalyptic number.

561334425751 is a deficient number, since it is larger than the sum of its proper divisors (108217743209).

561334425751 is a wasteful number, since it uses less digits than its factorization.

561334425751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36255.

The product of its digits is 1512000, while the sum is 46.

The spelling of 561334425751 in words is "five hundred sixty-one billion, three hundred thirty-four million, four hundred twenty-five thousand, seven hundred fifty-one".