2868045813 has 20 divisors (see below), whose sum is σ = 4306586988. Its totient is φ = 1902113280.

The previous prime is 2868045779. The next prime is 2868045847. The reversal of 2868045813 is 3185408682.

2868045813 is a `hidden beast` number, since 2 + 8 + 68 + 0 + 4 + 581 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (2868045779) and next prime (2868045847).

It can be written as a sum of positive squares in 2 ways, for example, as 1454812164 + 1413233649 = 38142^2 + 37593^2 .

It is not a de Polignac number, because 2868045813 - 2¹⁴ = 2868029429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2868045853) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 76098 + ... + 107363.

Almost surely, 2^2868045813 is an apocalyptic number.

It is an amenable number.

2868045813 is a deficient number, since it is larger than the sum of its proper divisors (1438541175).

2868045813 is a wasteful number, since it uses less digits than its factorization.

2868045813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183666 (or 183657 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 2868045813 is about 53554.1390837347. The cubic root of 2868045813 is about 1420.7860841334.

The spelling of 2868045813 in words is "two billion, eight hundred sixty-eight million, forty-five thousand, eight hundred thirteen".