2805909299 has 4 divisors (see below), whose sum is σ = 2806071264. Its totient is φ = 2805747336.

The previous prime is 2805909289. The next prime is 2805909349. The reversal of 2805909299 is 9929095082.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9929095082 = 2 ⋅4964547541.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2805909299 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 2805909299.

It is not an unprimeable number, because it can be changed into a prime (2805909289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51392 + ... + 90845.

It is an arithmetic number, because the mean of its divisors is an integer number (701517816).

Almost surely, 2^2805909299 is an apocalyptic number.

2805909299 is a deficient number, since it is larger than the sum of its proper divisors (161965).

2805909299 is a wasteful number, since it uses less digits than its factorization.

2805909299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161964.

The product of its (nonzero) digits is 1049760, while the sum is 53.

The square root of 2805909299 is about 52970.8344185742. The cubic root of 2805909299 is about 1410.4505876792.

The spelling of 2805909299 in words is "two billion, eight hundred five million, nine hundred nine thousand, two hundred ninety-nine".