513120515720 has 64 divisors (see below), whose sum is σ = 1222698741120. Its totient is φ = 193394133504.

The previous prime is 513120515701. The next prime is 513120515737. The reversal of 513120515720 is 27515021315.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4100597 + ... + 4223876.

It is an arithmetic number, because the mean of its divisors is an integer number (19104667830).

Almost surely, 2^513120515720 is an apocalyptic number.

It is an amenable number.

513120515720 is an abundant number, since it is smaller than the sum of its proper divisors (709578225400).

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

513120515720 is a wasteful number, since it uses less digits than its factorization.

513120515720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8324574 (or 8324570 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 32.

The spelling of 513120515720 in words is "five hundred thirteen billion, one hundred twenty million, five hundred fifteen thousand, seven hundred twenty".