2808891063 has 24 divisors (see below), whose sum is σ = 4479471360. Its totient is φ = 1681842960.

The previous prime is 2808891037. The next prime is 2808891067. The reversal of 2808891063 is 3601988082.

It is not a de Polignac number, because 2808891063 - 2⁶ = 2808890999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2808891067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162703 + ... + 179136.

It is an arithmetic number, because the mean of its divisors is an integer number (186644640).

Almost surely, 2^2808891063 is an apocalyptic number.

2808891063 is a deficient number, since it is larger than the sum of its proper divisors (1670580297).

2808891063 is a wasteful number, since it uses less digits than its factorization.

2808891063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341939 (or 341936 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 2808891063 is about 52998.9722824886. The cubic root of 2808891063 is about 1410.9500267178.

The spelling of 2808891063 in words is "two billion, eight hundred eight million, eight hundred ninety-one thousand, sixty-three".