1411943891 has 6 divisors (see below), whose sum is σ = 1499885340. Its totient is φ = 1328888096.

The previous prime is 1411943867. The next prime is 1411943893. The reversal of 1411943891 is 1983491141.

It is not a de Polignac number, because 1411943891 - 2²⁶ = 1344835027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1411943893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2442521 + ... + 2443098.

It is an arithmetic number, because the mean of its divisors is an integer number (249980890).

Almost surely, 2^1411943891 is an apocalyptic number.

1411943891 is a deficient number, since it is larger than the sum of its proper divisors (87941449).

1411943891 is an equidigital number, since it uses as much as digits as its factorization.

1411943891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4885653 (or 4885636 counting only the distinct ones).

The product of its digits is 31104, while the sum is 41.

The square root of 1411943891 is about 37575.8418535101. The cubic root of 1411943891 is about 1121.8612469984.

The spelling of 1411943891 in words is "one billion, four hundred eleven million, nine hundred forty-three thousand, eight hundred ninety-one".