4319126891 has 2 divisors, whose sum is σ = 4319126892. Its totient is φ = 4319126890.

The previous prime is 4319126887. The next prime is 4319126909. The reversal of 4319126891 is 1986219134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4319126891 - 2² = 4319126887 is a prime.

It is not a weakly prime, because it can be changed into another prime (4319126821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2159563445 + 2159563446.

It is an arithmetic number, because the mean of its divisors is an integer number (2159563446).

Almost surely, 2^4319126891 is an apocalyptic number.

4319126891 is a deficient number, since it is larger than the sum of its proper divisors (1).

4319126891 is an equidigital number, since it uses as much as digits as its factorization.

4319126891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 44.

The square root of 4319126891 is about 65720.0645997857. The cubic root of 4319126891 is about 1628.5408411545.

The spelling of 4319126891 in words is "four billion, three hundred nineteen million, one hundred twenty-six thousand, eight hundred ninety-one".