6445191743 has 2 divisors, whose sum is σ = 6445191744. Its totient is φ = 6445191742.

The previous prime is 6445191713. The next prime is 6445191749. The reversal of 6445191743 is 3471915446.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6445191743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6445191694 and 6445191703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6445191749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222595871 + 3222595872.

It is an arithmetic number, because the mean of its divisors is an integer number (3222595872).

Almost surely, 2^6445191743 is an apocalyptic number.

6445191743 is a deficient number, since it is larger than the sum of its proper divisors (1).

6445191743 is an equidigital number, since it uses as much as digits as its factorization.

6445191743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 44.

The square root of 6445191743 is about 80281.9515395584. The cubic root of 6445191743 is about 1860.9953187396.

The spelling of 6445191743 in words is "six billion, four hundred forty-five million, one hundred ninety-one thousand, seven hundred forty-three".