561692812752 has 120 divisors (see below), whose sum is σ = 1633416232448. Its totient is φ = 179991072000.

The previous prime is 561692812727. The next prime is 561692812763. The reversal of 561692812752 is 257218296165.

561692812752 is a `hidden beast` number, since 5 + 616 + 9 + 2 + 8 + 12 + 7 + 5 + 2 = 666.

561692812752 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 257418 + ... + 1090710.

Almost surely, 2^561692812752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561692812752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (816708116224).

561692812752 is an abundant number, since it is smaller than the sum of its proper divisors (1071723419696).

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

561692812752 is a wasteful number, since it uses less digits than its factorization.

561692812752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833489 (or 833480 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The spelling of 561692812752 in words is "five hundred sixty-one billion, six hundred ninety-two million, eight hundred twelve thousand, seven hundred fifty-two".