561453754590 has 48 divisors (see below), whose sum is σ = 1536610280400. Its totient is φ = 141840948096.

The previous prime is 561453754577. The next prime is 561453754591. The reversal of 561453754590 is 95457354165.

561453754590 is a `hidden beast` number, since 5 + 6 + 1 + 4 + 5 + 3 + 7 + 545 + 90 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561453754591) 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 23 ways as a sum of consecutive naturals, for example, 164166055 + ... + 164169474.

It is an arithmetic number, because the mean of its divisors is an integer number (32012714175).

Almost surely, 2^561453754590 is an apocalyptic number.

561453754590 is an abundant number, since it is smaller than the sum of its proper divisors (975156525810).

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

561453754590 is a wasteful number, since it uses less digits than its factorization.

561453754590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328335561 (or 328335558 counting only the distinct ones).

The product of its (nonzero) digits is 11340000, while the sum is 54.

The spelling of 561453754590 in words is "five hundred sixty-one billion, four hundred fifty-three million, seven hundred fifty-four thousand, five hundred ninety".