6442604407 has 2 divisors, whose sum is σ = 6442604408. Its totient is φ = 6442604406.

The previous prime is 6442604381. The next prime is 6442604459. The reversal of 6442604407 is 7044062446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6442604407 - 2¹⁹ = 6442080119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6442604107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3221302203 + 3221302204.

It is an arithmetic number, because the mean of its divisors is an integer number (3221302204).

Almost surely, 2^6442604407 is an apocalyptic number.

6442604407 is a deficient number, since it is larger than the sum of its proper divisors (1).

6442604407 is an equidigital number, since it uses as much as digits as its factorization.

6442604407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 37.

The square root of 6442604407 is about 80265.8358643327. The cubic root of 6442604407 is about 1860.7462615184.

The spelling of 6442604407 in words is "six billion, four hundred forty-two million, six hundred four thousand, four hundred seven".