521275483704 has 192 divisors, whose sum is σ = 1363485916800. Its totient is φ = 166057585920.

The previous prime is 521275483669. The next prime is 521275483747. The reversal of 521275483704 is 407384572125.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 888032899 + ... + 888033485.

It is an arithmetic number, because the mean of its divisors is an integer number (7101489150).

Almost surely, 2^521275483704 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 521275483704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681742958400).

521275483704 is an abundant number, since it is smaller than the sum of its proper divisors (842210433096).

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

521275483704 is a wasteful number, since it uses less digits than its factorization.

521275483704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 48.

The spelling of 521275483704 in words is "five hundred twenty-one billion, two hundred seventy-five million, four hundred eighty-three thousand, seven hundred four".