2863868213 has 4 divisors (see below), whose sum is σ = 2864478540. Its totient is φ = 2863257888.

The previous prime is 2863868179. The next prime is 2863868221. The reversal of 2863868213 is 3128683682.

It is a happy number.

2863868213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 307756849 + 2556111364 = 17543^2 + 50558^2 .

It is a cyclic number.

It is not a de Polignac number, because 2863868213 - 2⁶ = 2863868149 is a prime.

It is a super-2 number, since 2×2863868213² = 16403482282863626738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2868868213) 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, 298070 + ... + 307527.

It is an arithmetic number, because the mean of its divisors is an integer number (716119635).

Almost surely, 2^2863868213 is an apocalyptic number.

It is an amenable number.

2863868213 is a deficient number, since it is larger than the sum of its proper divisors (610327).

2863868213 is an equidigital number, since it uses as much as digits as its factorization.

2863868213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610326.

The product of its digits is 663552, while the sum is 47.

The square root of 2863868213 is about 53515.1213490169. The cubic root of 2863868213 is about 1420.0959091803.

The spelling of 2863868213 in words is "two billion, eight hundred sixty-three million, eight hundred sixty-eight thousand, two hundred thirteen".