513665245210 has 32 divisors (see below), whose sum is σ = 1003560671232. Its totient is φ = 188167613760.

The previous prime is 513665245183. The next prime is 513665245243. The reversal of 513665245210 is 12542566315.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15539676 + ... + 15572695.

It is an arithmetic number, because the mean of its divisors is an integer number (31361270976).

Almost surely, 2^513665245210 is an apocalyptic number.

513665245210 is a deficient number, since it is larger than the sum of its proper divisors (489895426022).

513665245210 is a wasteful number, since it uses less digits than its factorization.

513665245210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31112518.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 513665245210 in words is "five hundred thirteen billion, six hundred sixty-five million, two hundred forty-five thousand, two hundred ten".