521350013211452 has 12 divisors (see below), whose sum is σ = 912394091867496. Its totient is φ = 260665986963600.

The previous prime is 521350013211421. The next prime is 521350013211509. The reversal of 521350013211452 is 254112310053125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2254780478 + ... + 2255011685.

It is an arithmetic number, because the mean of its divisors is an integer number (76032840988958).

Almost surely, 2^{521350013211452} is an apocalyptic number.

It is an amenable number.

521350013211452 is a deficient number, since it is larger than the sum of its proper divisors (391044078656044).

521350013211452 is a wasteful number, since it uses less digits than its factorization.

521350013211452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4509821068 (or 4509821066 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 521350013211452 its reverse (254112310053125), we get a palindrome (775462323264577).

The spelling of 521350013211452 in words is "five hundred twenty-one trillion, three hundred fifty billion, thirteen million, two hundred eleven thousand, four hundred fifty-two".