521741474225072 has 30 divisors (see below), whose sum is σ = 1073835123322668. Its totient is φ = 245525399633152.

The previous prime is 521741474225017. The next prime is 521741474225099. The reversal of 521741474225072 is 270522474147125.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56416677278 + ... + 56416686525.

Almost surely, 2^{521741474225072} is an apocalyptic number.

It is an amenable number.

521741474225072 is an abundant number, since it is smaller than the sum of its proper divisors (552093649097596).

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

521741474225072 is a wasteful number, since it uses less digits than its factorization.

521741474225072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112833363845 (or 112833363822 counting only the distinct ones).

The product of its (nonzero) digits is 8780800, while the sum is 53.

The spelling of 521741474225072 in words is "five hundred twenty-one trillion, seven hundred forty-one billion, four hundred seventy-four million, two hundred twenty-five thousand, seventy-two".