2158822834 has 16 divisors (see below), whose sum is σ = 3701448000. Its totient is φ = 925057584.

The previous prime is 2158822829. The next prime is 2158822837. The reversal of 2158822834 is 4382288512.

It is not an unprimeable number, because it can be changed into a prime (2158822837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133752 + ... + 149020.

It is an arithmetic number, because the mean of its divisors is an integer number (231340500).

Almost surely, 2^2158822834 is an apocalyptic number.

2158822834 is a deficient number, since it is larger than the sum of its proper divisors (1542625166).

2158822834 is a wasteful number, since it uses less digits than its factorization.

2158822834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25377.

The product of its digits is 245760, while the sum is 43.

The square root of 2158822834 is about 46463.1341387987. The cubic root of 2158822834 is about 1292.4259447485.

The spelling of 2158822834 in words is "two billion, one hundred fifty-eight million, eight hundred twenty-two thousand, eight hundred thirty-four".