2864239689 has 16 divisors (see below), whose sum is σ = 3887112320. Its totient is φ = 1875519360.

The previous prime is 2864239619. The next prime is 2864239691. The reversal of 2864239689 is 9869324682.

It is not a de Polignac number, because 2864239689 - 2¹³ = 2864231497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2864239619) 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, 122277 + ... + 143805.

It is an arithmetic number, because the mean of its divisors is an integer number (242944520).

Almost surely, 2^2864239689 is an apocalyptic number.

It is an amenable number.

2864239689 is a deficient number, since it is larger than the sum of its proper divisors (1022872631).

2864239689 is a wasteful number, since it uses less digits than its factorization.

2864239689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22320.

The product of its digits is 8957952, while the sum is 57.

The square root of 2864239689 is about 53518.5919938109. The cubic root of 2864239689 is about 1420.1573073431.

The spelling of 2864239689 in words is "two billion, eight hundred sixty-four million, two hundred thirty-nine thousand, six hundred eighty-nine".