2809142286 has 16 divisors (see below), whose sum is σ = 5913984000. Its totient is φ = 887097528.

The previous prime is 2809142269. The next prime is 2809142311. The reversal of 2809142286 is 6822419082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12320686 + ... + 12320913.

It is an arithmetic number, because the mean of its divisors is an integer number (369624000).

Almost surely, 2^2809142286 is an apocalyptic number.

2809142286 is an abundant number, since it is smaller than the sum of its proper divisors (3104841714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2809142286 is a wasteful number, since it uses less digits than its factorization.

2809142286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24641623.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 2809142286 is about 53001.3423037568. The cubic root of 2809142286 is about 1410.9920898812.

The spelling of 2809142286 in words is "two billion, eight hundred nine million, one hundred forty-two thousand, two hundred eighty-six".