6445345183 has 2 divisors, whose sum is σ = 6445345184. Its totient is φ = 6445345182.

The previous prime is 6445345171. The next prime is 6445345219. The reversal of 6445345183 is 3815435446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6445345183 - 2¹³ = 6445336991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6445345103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222672591 + 3222672592.

It is an arithmetic number, because the mean of its divisors is an integer number (3222672592).

Almost surely, 2^6445345183 is an apocalyptic number.

6445345183 is a deficient number, since it is larger than the sum of its proper divisors (1).

6445345183 is an equidigital number, since it uses as much as digits as its factorization.

6445345183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 43.

The square root of 6445345183 is about 80282.9071658470. The cubic root of 6445345183 is about 1861.0100867955.

The spelling of 6445345183 in words is "six billion, four hundred forty-five million, three hundred forty-five thousand, one hundred eighty-three".