513878116 has 6 divisors (see below), whose sum is σ = 899286710. Its totient is φ = 256939056.

The previous prime is 513878077. The next prime is 513878137. The reversal of 513878116 is 611878315.

It can be written as a sum of positive squares in only one way, i.e., 398401600 + 115476516 = 19960^2 + 10746^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64234761 + ... + 64234768.

Almost surely, 2^513878116 is an apocalyptic number.

It is an amenable number.

513878116 is a deficient number, since it is larger than the sum of its proper divisors (385408594).

513878116 is a wasteful number, since it uses less digits than its factorization.

513878116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128469533 (or 128469531 counting only the distinct ones).

The product of its digits is 40320, while the sum is 40.

The square root of 513878116 is about 22668.8799017508. The cubic root of 513878116 is about 800.9769917898.

The spelling of 513878116 in words is "five hundred thirteen million, eight hundred seventy-eight thousand, one hundred sixteen".