518064769 has 2 divisors, whose sum is σ = 518064770. Its totient is φ = 518064768.

The previous prime is 518064763. The next prime is 518064791. The reversal of 518064769 is 967460815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411562369 + 106502400 = 20287^2 + 10320^2 .

It is a cyclic number.

It is not a de Polignac number, because 518064769 - 2⁷ = 518064641 is a prime.

It is a super-2 number, since 2×518064769² = 536782209758046722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (518064763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259032384 + 259032385.

It is an arithmetic number, because the mean of its divisors is an integer number (259032385).

Almost surely, 2^518064769 is an apocalyptic number.

It is an amenable number.

518064769 is a deficient number, since it is larger than the sum of its proper divisors (1).

518064769 is an equidigital number, since it uses as much as digits as its factorization.

518064769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 518064769 is about 22761.0362022470. The cubic root of 518064769 is about 803.1463432866.

The spelling of 518064769 in words is "five hundred eighteen million, sixty-four thousand, seven hundred sixty-nine".