2788164445 has 16 divisors (see below), whose sum is σ = 3660815808. Its totient is φ = 2021725440.

The previous prime is 2788164433. The next prime is 2788164497. The reversal of 2788164445 is 5444618872.

It is a happy number.

It is not a de Polignac number, because 2788164445 - 2¹¹ = 2788162397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56679 + ... + 93748.

It is an arithmetic number, because the mean of its divisors is an integer number (228800988).

Almost surely, 2^2788164445 is an apocalyptic number.

It is an amenable number.

2788164445 is a deficient number, since it is larger than the sum of its proper divisors (872651363).

2788164445 is a wasteful number, since it uses less digits than its factorization.

2788164445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150780.

The product of its digits is 1720320, while the sum is 49.

The square root of 2788164445 is about 52803.0723064482. The cubic root of 2788164445 is about 1407.4710204390.

The spelling of 2788164445 in words is "two billion, seven hundred eighty-eight million, one hundred sixty-four thousand, four hundred forty-five".