522561802426380 has 144 divisors (see below), whose sum is σ = 1596734498792160. Its totient is φ = 138327441122304.

The previous prime is 522561802426297. The next prime is 522561802426393. The reversal of 522561802426380 is 83624208165225.

522561802426380 is a `hidden beast` number, since 5 + 2 + 2 + 5 + 6 + 18 + 0 + 242 + 6 + 380 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 676210251 + ... + 676982589.

It is an arithmetic number, because the mean of its divisors is an integer number (11088434019390).

Almost surely, 2^{522561802426380} 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 522561802426380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (798367249396080).

522561802426380 is an abundant number, since it is smaller than the sum of its proper divisors (1074172696365780).

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

522561802426380 is a wasteful number, since it uses less digits than its factorization.

522561802426380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799928 (or 799923 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 54.

The spelling of 522561802426380 in words is "five hundred twenty-two trillion, five hundred sixty-one billion, eight hundred two million, four hundred twenty-six thousand, three hundred eighty".