2806113638 has 4 divisors (see below), whose sum is σ = 4209170460. Its totient is φ = 1403056818.

The previous prime is 2806113637. The next prime is 2806113647. The reversal of 2806113638 is 8363116082.

2806113638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2806113637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701528408 + ... + 701528411.

It is an arithmetic number, because the mean of its divisors is an integer number (1052292615).

Almost surely, 2^2806113638 is an apocalyptic number.

2806113638 is a deficient number, since it is larger than the sum of its proper divisors (1403056822).

2806113638 is a wasteful number, since it uses less digits than its factorization.

2806113638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403056821.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 2806113638 is about 52972.7631712751. The cubic root of 2806113638 is about 1410.4848253108.

The spelling of 2806113638 in words is "two billion, eight hundred six million, one hundred thirteen thousand, six hundred thirty-eight".