4258639865 has 16 divisors (see below), whose sum is σ = 5462626176. Its totient is φ = 3179299200.

The previous prime is 4258639813. The next prime is 4258639867. The reversal of 4258639865 is 5689368524.

It is a de Polignac number, because none of the positive numbers 2^k-4258639865 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4258639865.

It is not an unprimeable number, because it can be changed into a prime (4258639867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446891 + ... + 456320.

It is an arithmetic number, because the mean of its divisors is an integer number (341414136).

Almost surely, 2^4258639865 is an apocalyptic number.

It is an amenable number.

4258639865 is a deficient number, since it is larger than the sum of its proper divisors (1203986311).

4258639865 is a wasteful number, since it uses less digits than its factorization.

4258639865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903280.

The product of its digits is 12441600, while the sum is 56.

The square root of 4258639865 is about 65258.2551482952. The cubic root of 4258639865 is about 1620.9027972306.

The spelling of 4258639865 in words is "four billion, two hundred fifty-eight million, six hundred thirty-nine thousand, eight hundred sixty-five".