2805308769788 has 24 divisors (see below), whose sum is σ = 5610654007392. Its totient is φ = 1202267372544.

The previous prime is 2805308769763. The next prime is 2805308769821. The reversal of 2805308769788 is 8879678035082.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6778220 + ... + 7180172.

It is an arithmetic number, because the mean of its divisors is an integer number (233777250308).

Almost surely, 2^{2805308769788} is an apocalyptic number.

2805308769788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2805308769788 is an abundant number, since it is smaller than the sum of its proper divisors (2805345237604).

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

2805308769788 is a wasteful number, since it uses less digits than its factorization.

2805308769788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651221 (or 651219 counting only the distinct ones).

The product of its (nonzero) digits is 325140480, while the sum is 71.

The spelling of 2805308769788 in words is "two trillion, eight hundred five billion, three hundred eight million, seven hundred sixty-nine thousand, seven hundred eighty-eight".