6445332379 has 2 divisors, whose sum is σ = 6445332380. Its totient is φ = 6445332378.

The previous prime is 6445332373. The next prime is 6445332427. The reversal of 6445332379 is 9732335446.

6445332379 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6445332379 is a prime.

It is not a weakly prime, because it can be changed into another prime (6445332373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222666189 + 3222666190.

It is an arithmetic number, because the mean of its divisors is an integer number (3222666190).

Almost surely, 2^6445332379 is an apocalyptic number.

6445332379 is a deficient number, since it is larger than the sum of its proper divisors (1).

6445332379 is an equidigital number, since it uses as much as digits as its factorization.

6445332379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 46.

The square root of 6445332379 is about 80282.8274228057. The cubic root of 6445332379 is about 1861.0088544649.

The spelling of 6445332379 in words is "six billion, four hundred forty-five million, three hundred thirty-two thousand, three hundred seventy-nine".