2158852276 has 96 divisors (see below), whose sum is σ = 4753817600. Its totient is φ = 837008640.

The previous prime is 2158852247. The next prime is 2158852279. The reversal of 2158852276 is 6722588512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158852279) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1302040 + ... + 1303696.

Almost surely, 2^2158852276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2158852276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2376908800).

2158852276 is an abundant number, since it is smaller than the sum of its proper divisors (2594965324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2158852276 is a wasteful number, since it uses less digits than its factorization.

2158852276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797 (or 1795 counting only the distinct ones).

The product of its digits is 537600, while the sum is 46.

The square root of 2158852276 is about 46463.4509695524. The cubic root of 2158852276 is about 1292.4318200850.

The spelling of 2158852276 in words is "two billion, one hundred fifty-eight million, eight hundred fifty-two thousand, two hundred seventy-six".