513874664 has 16 divisors (see below), whose sum is σ = 996740100. Its totient is φ = 248077312.

The previous prime is 513874661. The next prime is 513874681. The reversal of 513874664 is 466478315.

It can be written as a sum of positive squares in 2 ways, for example, as 504002500 + 9872164 = 22450^2 + 3142^2 .

It is a super-2 number, since 2×513874664² = 528134340602225792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (513874661) 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, 1107257 + ... + 1107720.

Almost surely, 2^513874664 is an apocalyptic number.

It is an amenable number.

513874664 is a deficient number, since it is larger than the sum of its proper divisors (482865436).

513874664 is a wasteful number, since it uses less digits than its factorization.

513874664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215012 (or 2215008 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 513874664 is about 22668.8037619986. The cubic root of 513874664 is about 800.9751982524.

The spelling of 513874664 in words is "five hundred thirteen million, eight hundred seventy-four thousand, six hundred sixty-four".