521670944060 has 96 divisors (see below), whose sum is σ = 1282804131840. Its totient is φ = 174470381568.

The previous prime is 521670943999. The next prime is 521670944077. The reversal of 521670944060 is 60449076125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4573037 + ... + 4685723.

It is an arithmetic number, because the mean of its divisors is an integer number (13362543040).

Almost surely, 2^521670944060 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 521670944060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641402065920).

521670944060 is an abundant number, since it is smaller than the sum of its proper divisors (761133187780).

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

521670944060 is a wasteful number, since it uses less digits than its factorization.

521670944060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113515 (or 113513 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 521670944060 in words is "five hundred twenty-one billion, six hundred seventy million, nine hundred forty-four thousand, sixty".