6404807407 has 2 divisors, whose sum is σ = 6404807408. Its totient is φ = 6404807406.

The previous prime is 6404807377. The next prime is 6404807459. The reversal of 6404807407 is 7047084046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6404807407 - 2¹¹ = 6404805359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6404807407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6404807107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3202403703 + 3202403704.

It is an arithmetic number, because the mean of its divisors is an integer number (3202403704).

Almost surely, 2^6404807407 is an apocalyptic number.

6404807407 is a deficient number, since it is larger than the sum of its proper divisors (1).

6404807407 is an equidigital number, since it uses as much as digits as its factorization.

6404807407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150528, while the sum is 40.

The square root of 6404807407 is about 80030.0406534946. The cubic root of 6404807407 is about 1857.1002922341.

The spelling of 6404807407 in words is "six billion, four hundred four million, eight hundred seven thousand, four hundred seven".