2158886443 has 6 divisors (see below), whose sum is σ = 2511357756. Its totient is φ = 1850474052.

The previous prime is 2158886437. The next prime is 2158886453. The reversal of 2158886443 is 3446888512.

It is not a de Polignac number, because 2158886443 - 2⁹ = 2158885931 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 44058907 = 2158886443 / (2 + 1 + 5 + 8 + 8 + 8 + 6 + 4 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2158886453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22029405 + ... + 22029502.

It is an arithmetic number, because the mean of its divisors is an integer number (418559626).

Almost surely, 2^2158886443 is an apocalyptic number.

2158886443 is a deficient number, since it is larger than the sum of its proper divisors (352471313).

2158886443 is an equidigital number, since it uses as much as digits as its factorization.

2158886443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44058921 (or 44058914 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 49.

The square root of 2158886443 is about 46463.8186441881. The cubic root of 2158886443 is about 1292.4386382580.

The spelling of 2158886443 in words is "two billion, one hundred fifty-eight million, eight hundred eighty-six thousand, four hundred forty-three".