4256609279 has 4 divisors (see below), whose sum is σ = 4584040776. Its totient is φ = 3929177784.

The previous prime is 4256609251. The next prime is 4256609327. The reversal of 4256609279 is 9729066524.

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

It is a cyclic number.

It is not a de Polignac number, because 4256609279 - 2²⁸ = 3988173823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256609179) 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, 163715729 + ... + 163715754.

It is an arithmetic number, because the mean of its divisors is an integer number (1146010194).

Almost surely, 2^4256609279 is an apocalyptic number.

4256609279 is a deficient number, since it is larger than the sum of its proper divisors (327431497).

4256609279 is a wasteful number, since it uses less digits than its factorization.

4256609279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327431496.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The square root of 4256609279 is about 65242.6952156331. The cubic root of 4256609279 is about 1620.6451323503.

The spelling of 4256609279 in words is "four billion, two hundred fifty-six million, six hundred nine thousand, two hundred seventy-nine".