513594228864 has 64 divisors (see below), whose sum is σ = 1372120597440. Its totient is φ = 170208470016.

The previous prime is 513594228863. The next prime is 513594228907. The reversal of 513594228864 is 468822495315.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (513594228863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3799132 + ... + 3931995.

It is an arithmetic number, because the mean of its divisors is an integer number (21439384335).

Almost surely, 2^513594228864 is an apocalyptic number.

It is an amenable number.

513594228864 is an abundant number, since it is smaller than the sum of its proper divisors (858526368576).

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

513594228864 is a wasteful number, since it uses less digits than its factorization.

513594228864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7731317 (or 7731305 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 57.

The spelling of 513594228864 in words is "five hundred thirteen billion, five hundred ninety-four million, two hundred twenty-eight thousand, eight hundred sixty-four".