6406393407 has 8 divisors (see below), whose sum is σ = 9044320176. Its totient is φ = 4019697792.

The previous prime is 6406393397. The next prime is 6406393439. The reversal of 6406393407 is 7043936046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6406393407 - 2⁸ = 6406393151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6406393507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62807728 + ... + 62807829.

It is an arithmetic number, because the mean of its divisors is an integer number (1130540022).

Almost surely, 2^6406393407 is an apocalyptic number.

6406393407 is a deficient number, since it is larger than the sum of its proper divisors (2637926769).

6406393407 is a wasteful number, since it uses less digits than its factorization.

6406393407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125615577.

The product of its (nonzero) digits is 326592, while the sum is 42.

The square root of 6406393407 is about 80039.9488193240. The cubic root of 6406393407 is about 1857.2535686608.

The spelling of 6406393407 in words is "six billion, four hundred six million, three hundred ninety-three thousand, four hundred seven".