561313574580 has 96 divisors (see below), whose sum is σ = 1754431354368. Its totient is φ = 132911452800.

The previous prime is 561313574573. The next prime is 561313574581. The reversal of 561313574580 is 85475313165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561313574581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9860866 + ... + 9917625.

It is an arithmetic number, because the mean of its divisors is an integer number (18275326608).

Almost surely, 2^561313574580 is an apocalyptic number.

It is an amenable number.

561313574580 is an abundant number, since it is smaller than the sum of its proper divisors (1193117779788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561313574580 is a wasteful number, since it uses less digits than its factorization.

561313574580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19778557 (or 19778555 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 48.

The spelling of 561313574580 in words is "five hundred sixty-one billion, three hundred thirteen million, five hundred seventy-four thousand, five hundred eighty".