6445414373 has 2 divisors, whose sum is σ = 6445414374. Its totient is φ = 6445414372.

The previous prime is 6445414369. The next prime is 6445414399. The reversal of 6445414373 is 3734145446.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4355736004 + 2089678369 = 65998^2 + 45713^2 .

It is a cyclic number.

It is not a de Polignac number, because 6445414373 - 2² = 6445414369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6445414373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6445414333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222707186 + 3222707187.

It is an arithmetic number, because the mean of its divisors is an integer number (3222707187).

Almost surely, 2^6445414373 is an apocalyptic number.

It is an amenable number.

6445414373 is a deficient number, since it is larger than the sum of its proper divisors (1).

6445414373 is an equidigital number, since it uses as much as digits as its factorization.

6445414373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 41.

The square root of 6445414373 is about 80283.3380783335. The cubic root of 6445414373 is about 1861.0167460110.

The spelling of 6445414373 in words is "six billion, four hundred forty-five million, four hundred fourteen thousand, three hundred seventy-three".