518064765 has 64 divisors (see below), whose sum is σ = 891371520. Its totient is φ = 256354560.

The previous prime is 518064763. The next prime is 518064769. The reversal of 518064765 is 567460815.

It is not a de Polignac number, because 518064765 - 2¹ = 518064763 is a prime.

It is a super-2 number, since 2×518064765² = 536782201469010450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518064763) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2167516 + ... + 2167754.

It is an arithmetic number, because the mean of its divisors is an integer number (13927680).

Almost surely, 2^518064765 is an apocalyptic number.

It is an amenable number.

518064765 is a deficient number, since it is larger than the sum of its proper divisors (373306755).

518064765 is a wasteful number, since it uses less digits than its factorization.

518064765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 518064765 is about 22761.0361143776. The cubic root of 518064765 is about 803.1463412196.

The spelling of 518064765 in words is "five hundred eighteen million, sixty-four thousand, seven hundred sixty-five".