4068419891 has 4 divisors (see below), whose sum is σ = 4080144792. Its totient is φ = 4056694992.

The previous prime is 4068419869. The next prime is 4068419893. The reversal of 4068419891 is 1989148604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4068419891 - 2³⁰ = 2994678067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4068419893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5861930 + ... + 5862623.

It is an arithmetic number, because the mean of its divisors is an integer number (1020036198).

Almost surely, 2^4068419891 is an apocalyptic number.

4068419891 is a deficient number, since it is larger than the sum of its proper divisors (11724901).

4068419891 is a wasteful number, since it uses less digits than its factorization.

4068419891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11724900.

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 4068419891 is about 63784.1664600236. The cubic root of 4068419891 is about 1596.4007494172.

The spelling of 4068419891 in words is "four billion, sixty-eight million, four hundred nineteen thousand, eight hundred ninety-one".