2564814239 has 8 divisors (see below), whose sum is σ = 2781980880. Its totient is φ = 2350486656.

The previous prime is 2564814229. The next prime is 2564814253. The reversal of 2564814239 is 9324184652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2564814239 - 2²⁰ = 2563765663 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 2564814239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564814229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 707882 + ... + 711495.

It is an arithmetic number, because the mean of its divisors is an integer number (347747610).

Almost surely, 2^2564814239 is an apocalyptic number.

2564814239 is a deficient number, since it is larger than the sum of its proper divisors (217166641).

2564814239 is a wasteful number, since it uses less digits than its factorization.

2564814239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419529.

The product of its digits is 414720, while the sum is 44.

The square root of 2564814239 is about 50643.9950931994. The cubic root of 2564814239 is about 1368.8377446192.

The spelling of 2564814239 in words is "two billion, five hundred sixty-four million, eight hundred fourteen thousand, two hundred thirty-nine".