513195868 has 6 divisors (see below), whose sum is σ = 898092776. Its totient is φ = 256597932.

The previous prime is 513195853. The next prime is 513195869. The reversal of 513195868 is 868591315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513195869) 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 as a sum of consecutive naturals, namely, 64149480 + ... + 64149487.

Almost surely, 2^513195868 is an apocalyptic number.

It is an amenable number.

513195868 is a deficient number, since it is larger than the sum of its proper divisors (384896908).

513195868 is a wasteful number, since it uses less digits than its factorization.

513195868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128298971 (or 128298969 counting only the distinct ones).

The product of its digits is 259200, while the sum is 46.

The square root of 513195868 is about 22653.8267848944. The cubic root of 513195868 is about 800.6223636205.

The spelling of 513195868 in words is "five hundred thirteen million, one hundred ninety-five thousand, eight hundred sixty-eight".