513211421443504 has 40 divisors (see below), whose sum is σ = 1136397893165568. Its totient is φ = 219947524772160.

The previous prime is 513211421443489. The next prime is 513211421443691. The reversal of 513211421443504 is 405344124112315.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150208089 + ... + 153586759.

Almost surely, 2^{513211421443504} is an apocalyptic number.

It is an amenable number.

513211421443504 is an abundant number, since it is smaller than the sum of its proper divisors (623186471722064).

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

513211421443504 is a wasteful number, since it uses less digits than its factorization.

513211421443504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4734913 (or 4734907 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

Adding to 513211421443504 its reverse (405344124112315), we get a palindrome (918555545555819).

The spelling of 513211421443504 in words is "five hundred thirteen trillion, two hundred eleven billion, four hundred twenty-one million, four hundred forty-three thousand, five hundred four".