513064791 has 12 divisors (see below), whose sum is σ = 742106040. Its totient is φ = 341575920.

The previous prime is 513064763. The next prime is 513064793. The reversal of 513064791 is 197460315.

513064791 is a `hidden beast` number, since 5 + 1 + 3 + 0 + 647 + 9 + 1 = 666.

It is not a de Polignac number, because 513064791 - 2⁵ = 513064759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513064793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31920 + ... + 45221.

It is an arithmetic number, because the mean of its divisors is an integer number (61842170).

Almost surely, 2^513064791 is an apocalyptic number.

513064791 is a deficient number, since it is larger than the sum of its proper divisors (229041249).

513064791 is a wasteful number, since it uses less digits than its factorization.

513064791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77886 (or 77883 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 513064791 is about 22650.9335569199. The cubic root of 513064791 is about 800.5541946426.

The spelling of 513064791 in words is "five hundred thirteen million, sixty-four thousand, seven hundred ninety-one".