2823778164 has 24 divisors (see below), whose sum is σ = 6594907648. Its totient is φ = 940389120.

The previous prime is 2823778129. The next prime is 2823778171. The reversal of 2823778164 is 4618773282.

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, 95197 + ... + 121284.

Almost surely, 2^2823778164 is an apocalyptic number.

It is an amenable number.

2823778164 is an abundant number, since it is smaller than the sum of its proper divisors (3771129484).

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

2823778164 is a wasteful number, since it uses less digits than its factorization.

2823778164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217575 (or 217573 counting only the distinct ones).

The product of its digits is 903168, while the sum is 48.

The square root of 2823778164 is about 53139.2337543552. The cubic root of 2823778164 is about 1413.4383106778.

The spelling of 2823778164 in words is "two billion, eight hundred twenty-three million, seven hundred seventy-eight thousand, one hundred sixty-four".