513215644460 has 24 divisors (see below), whose sum is σ = 1080325073520. Its totient is φ = 204796311104.

The previous prime is 513215644453. The next prime is 513215644517. The reversal of 513215644460 is 64446512315.

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, 30613079 + ... + 30629838.

It is an arithmetic number, because the mean of its divisors is an integer number (45013544730).

Almost surely, 2^513215644460 is an apocalyptic number.

It is an amenable number.

513215644460 is an abundant number, since it is smaller than the sum of its proper divisors (567109429060).

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

513215644460 is a wasteful number, since it uses less digits than its factorization.

513215644460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61243345 (or 61243343 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 513215644460 in words is "five hundred thirteen billion, two hundred fifteen million, six hundred forty-four thousand, four hundred sixty".