8133838894 has 16 divisors (see below), whose sum is σ = 12618086400. Its totient is φ = 3930000984.

The previous prime is 8133838883. The next prime is 8133838907. The reversal of 8133838894 is 4988383318.

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, 540234 + ... + 555085.

It is an arithmetic number, because the mean of its divisors is an integer number (788630400).

Almost surely, 2^8133838894 is an apocalyptic number.

8133838894 is a deficient number, since it is larger than the sum of its proper divisors (4484247506).

8133838894 is a wasteful number, since it uses less digits than its factorization.

8133838894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095447.

The product of its digits is 3981312, while the sum is 55.

The square root of 8133838894 is about 90187.7979218919. The cubic root of 8133838894 is about 2011.0916154884.

The spelling of 8133838894 in words is "eight billion, one hundred thirty-three million, eight hundred thirty-eight thousand, eight hundred ninety-four".