2158868833 has 8 divisors (see below), whose sum is σ = 2355467040. Its totient is φ = 1962326880.

The previous prime is 2158868827. The next prime is 2158868851. The reversal of 2158868833 is 3388688512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2158868833 - 2⁵ = 2158868801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2158868533) 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, 134166 + ... + 149392.

It is an arithmetic number, because the mean of its divisors is an integer number (294433380).

Almost surely, 2^2158868833 is an apocalyptic number.

It is an amenable number.

2158868833 is a deficient number, since it is larger than the sum of its proper divisors (196598207).

2158868833 is a wasteful number, since it uses less digits than its factorization.

2158868833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28127.

The product of its digits is 2211840, while the sum is 52.

The square root of 2158868833 is about 46463.6291415124. The cubic root of 2158868833 is about 1292.4351241152.

The spelling of 2158868833 in words is "two billion, one hundred fifty-eight million, eight hundred sixty-eight thousand, eight hundred thirty-three".