6406364443 has 2 divisors, whose sum is σ = 6406364444. Its totient is φ = 6406364442.

The previous prime is 6406364423. The next prime is 6406364449. The reversal of 6406364443 is 3444636046.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6406364443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6406364396 and 6406364405.

It is not a weakly prime, because it can be changed into another prime (6406364449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3203182221 + 3203182222.

It is an arithmetic number, because the mean of its divisors is an integer number (3203182222).

Almost surely, 2^6406364443 is an apocalyptic number.

6406364443 is a deficient number, since it is larger than the sum of its proper divisors (1).

6406364443 is an equidigital number, since it uses as much as digits as its factorization.

6406364443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 40.

The square root of 6406364443 is about 80039.7678844710. The cubic root of 6406364443 is about 1857.2507697083.

The spelling of 6406364443 in words is "six billion, four hundred six million, three hundred sixty-four thousand, four hundred forty-three".