2805122886 has 16 divisors (see below), whose sum is σ = 5610959424. Its totient is φ = 934922024.

The previous prime is 2805122869. The next prime is 2805122899. The reversal of 2805122886 is 6882215082.

2805122886 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 30865 + ... + 81011.

It is an arithmetic number, because the mean of its divisors is an integer number (350684964).

Almost surely, 2^2805122886 is an apocalyptic number.

2805122886 is an abundant number, since it is smaller than the sum of its proper divisors (2805836538).

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

2805122886 is a wasteful number, since it uses less digits than its factorization.

2805122886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59475.

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 2805122886 is about 52963.4108229446. The cubic root of 2805122886 is about 1410.3188062373.

The spelling of 2805122886 in words is "two billion, eight hundred five million, one hundred twenty-two thousand, eight hundred eighty-six".