513498668 has 36 divisors (see below), whose sum is σ = 963284952. Its totient is φ = 239447040.

The previous prime is 513498619. The next prime is 513498683. The reversal of 513498668 is 866894315.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128663 + ... + 132593.

Almost surely, 2^513498668 is an apocalyptic number.

It is an amenable number.

513498668 is a deficient number, since it is larger than the sum of its proper divisors (449786284).

513498668 is a wasteful number, since it uses less digits than its factorization.

513498668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4082 (or 4063 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

The square root of 513498668 is about 22660.5089969312. The cubic root of 513498668 is about 800.7797959010.

The spelling of 513498668 in words is "five hundred thirteen million, four hundred ninety-eight thousand, six hundred sixty-eight".