4247891143 has 2 divisors, whose sum is σ = 4247891144. Its totient is φ = 4247891142.

The previous prime is 4247891111. The next prime is 4247891149. The reversal of 4247891143 is 3411987424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4247891143 - 2⁵ = 4247891111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4247891143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4247891149) 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 as a sum of consecutive naturals, namely, 2123945571 + 2123945572.

It is an arithmetic number, because the mean of its divisors is an integer number (2123945572).

Almost surely, 2^4247891143 is an apocalyptic number.

4247891143 is a deficient number, since it is larger than the sum of its proper divisors (1).

4247891143 is an equidigital number, since it uses as much as digits as its factorization.

4247891143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 43.

The square root of 4247891143 is about 65175.8478502582. The cubic root of 4247891143 is about 1619.5379395277.

The spelling of 4247891143 in words is "four billion, two hundred forty-seven million, eight hundred ninety-one thousand, one hundred forty-three".