4259991265 has 4 divisors (see below), whose sum is σ = 5111989524. Its totient is φ = 3407993008.

The previous prime is 4259991247. The next prime is 4259991269. The reversal of 4259991265 is 5621999524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 464445601 + 3795545664 = 21551^2 + 61608^2 .

It is a cyclic number.

It is not a de Polignac number, because 4259991265 - 2⁹ = 4259990753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4259991269) 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, 425999122 + ... + 425999131.

It is an arithmetic number, because the mean of its divisors is an integer number (1277997381).

Almost surely, 2^4259991265 is an apocalyptic number.

It is an amenable number.

4259991265 is a deficient number, since it is larger than the sum of its proper divisors (851998259).

4259991265 is an equidigital number, since it uses as much as digits as its factorization.

4259991265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851998258.

The product of its digits is 1749600, while the sum is 52.

The square root of 4259991265 is about 65268.6085725749. The cubic root of 4259991265 is about 1621.0742335301.

The spelling of 4259991265 in words is "four billion, two hundred fifty-nine million, nine hundred ninety-one thousand, two hundred sixty-five".