2864686853 has 12 divisors (see below), whose sum is σ = 3422457612. Its totient is φ = 2389080960.

The previous prime is 2864686837. The next prime is 2864686871. The reversal of 2864686853 is 3586864682.

It can be written as a sum of positive squares in 2 ways, for example, as 2572721284 + 291965569 = 50722^2 + 17087^2 .

It is not a de Polignac number, because 2864686853 - 2⁴ = 2864686837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2864686873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 788228 + ... + 791853.

It is an arithmetic number, because the mean of its divisors is an integer number (285204801).

Almost surely, 2^2864686853 is an apocalyptic number.

It is an amenable number.

2864686853 is a deficient number, since it is larger than the sum of its proper divisors (557770759).

2864686853 is a wasteful number, since it uses less digits than its factorization.

2864686853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580132 (or 1580125 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 56.

The square root of 2864686853 is about 53522.7694817822. The cubic root of 2864686853 is about 1420.2312083019.

The spelling of 2864686853 in words is "two billion, eight hundred sixty-four million, six hundred eighty-six thousand, eight hundred fifty-three".