2805863888892 has 24 divisors (see below), whose sum is σ = 6604953936336. Its totient is φ = 927011077888.

The previous prime is 2805863888827. The next prime is 2805863888981. The reversal of 2805863888892 is 2988883685082.

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, 1034609223 + ... + 1034611934.

It is an arithmetic number, because the mean of its divisors is an integer number (275206414014).

Almost surely, 2^{2805863888892} is an apocalyptic number.

It is an amenable number.

2805863888892 is an abundant number, since it is smaller than the sum of its proper divisors (3799090047444).

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

2805863888892 is a wasteful number, since it uses less digits than its factorization.

2805863888892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069221277 (or 2069221275 counting only the distinct ones).

The product of its (nonzero) digits is 849346560, while the sum is 75.

The spelling of 2805863888892 in words is "two trillion, eight hundred five billion, eight hundred sixty-three million, eight hundred eighty-eight thousand, eight hundred ninety-two".