6445245383 has 2 divisors, whose sum is σ = 6445245384. Its totient is φ = 6445245382.

The previous prime is 6445245353. The next prime is 6445245427. The reversal of 6445245383 is 3835425446.

It is an a-pointer prime, because the next prime (6445245427) can be obtained adding 6445245383 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6445245383 - 2¹⁸ = 6444983239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6445245353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222622691 + 3222622692.

It is an arithmetic number, because the mean of its divisors is an integer number (3222622692).

Almost surely, 2^6445245383 is an apocalyptic number.

6445245383 is a deficient number, since it is larger than the sum of its proper divisors (1).

6445245383 is an equidigital number, since it uses as much as digits as its factorization.

6445245383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1382400, while the sum is 44.

The square root of 6445245383 is about 80282.2856114598. The cubic root of 6445245383 is about 1861.0004814260. Note that the first 3 decimals are identical.

The spelling of 6445245383 in words is "six billion, four hundred forty-five million, two hundred forty-five thousand, three hundred eighty-three".