2841267891 has 48 divisors (see below), whose sum is σ = 4817570688. Its totient is φ = 1472889600.

The previous prime is 2841267889. The next prime is 2841267899. The reversal of 2841267891 is 1987621482.

It is a happy number.

It is not a de Polignac number, because 2841267891 - 2¹ = 2841267889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2841267891.

It is not an unprimeable number, because it can be changed into a prime (2841267899) 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 47 ways as a sum of consecutive naturals, for example, 908811 + ... + 911931.

It is an arithmetic number, because the mean of its divisors is an integer number (100366056).

Almost surely, 2^2841267891 is an apocalyptic number.

2841267891 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2841267891 is a deficient number, since it is larger than the sum of its proper divisors (1976302797).

2841267891 is a wasteful number, since it uses less digits than its factorization.

2841267891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3712 (or 3705 counting only the distinct ones).

The product of its digits is 387072, while the sum is 48.

The square root of 2841267891 is about 53303.5448258369. The cubic root of 2841267891 is about 1416.3504595731.

The spelling of 2841267891 in words is "two billion, eight hundred forty-one million, two hundred sixty-seven thousand, eight hundred ninety-one".