522973961536 has 448 divisors, whose sum is σ = 1286960209920. Its totient is φ = 208182804480.

The previous prime is 522973961501. The next prime is 522973961551. The reversal of 522973961536 is 635169379225.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1929793081 + ... + 1929793351.

It is an arithmetic number, because the mean of its divisors is an integer number (2872679040).

Almost surely, 2^522973961536 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 522973961536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (643480104960).

522973961536 is an abundant number, since it is smaller than the sum of its proper divisors (763986248384).

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

522973961536 is a wasteful number, since it uses less digits than its factorization.

522973961536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 532 counting only the distinct ones).

The product of its digits is 18370800, while the sum is 58.

The spelling of 522973961536 in words is "five hundred twenty-two billion, nine hundred seventy-three million, nine hundred sixty-one thousand, five hundred thirty-six".