513401332624 has 20 divisors (see below), whose sum is σ = 994727305600. Its totient is φ = 256697511840.

The previous prime is 513401332603. The next prime is 513401332627. The reversal of 513401332624 is 426233104315.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 513401332624.

It is not an unprimeable number, because it can be changed into a prime (513401332627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1697029 + ... + 1976539.

It is an arithmetic number, because the mean of its divisors is an integer number (49736365280).

Almost surely, 2^513401332624 is an apocalyptic number.

It is an amenable number.

513401332624 is a deficient number, since it is larger than the sum of its proper divisors (481325972976).

513401332624 is a wasteful number, since it uses less digits than its factorization.

513401332624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394318 (or 394312 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 513401332624 its reverse (426233104315), we get a palindrome (939634436939).

The spelling of 513401332624 in words is "five hundred thirteen billion, four hundred one million, three hundred thirty-two thousand, six hundred twenty-four".