2783889445 has 16 divisors (see below), whose sum is σ = 3437501760. Its totient is φ = 2163135744.

The previous prime is 2783889431. The next prime is 2783889523. The reversal of 2783889445 is 5449883872.

It is a happy number.

2783889445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2783889445 - 2¹³ = 2783881253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2783889445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2317 + ... + 74653.

It is an arithmetic number, because the mean of its divisors is an integer number (214843860).

Almost surely, 2^2783889445 is an apocalyptic number.

It is an amenable number.

2783889445 is a deficient number, since it is larger than the sum of its proper divisors (653612315).

2783889445 is a wasteful number, since it uses less digits than its factorization.

2783889445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72564.

The product of its digits is 15482880, while the sum is 58.

The square root of 2783889445 is about 52762.5761785757. The cubic root of 2783889445 is about 1406.7513096109.

The spelling of 2783889445 in words is "two billion, seven hundred eighty-three million, eight hundred eighty-nine thousand, four hundred forty-five".