6403073809 has 8 divisors (see below), whose sum is σ = 7015677120. Its totient is φ = 5795554800.

The previous prime is 6403073773. The next prime is 6403073837. The reversal of 6403073809 is 9083703046.

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

It is a cyclic number.

It is not a de Polignac number, because 6403073809 - 2¹¹ = 6403071761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6403073899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1268437 + ... + 1273474.

It is an arithmetic number, because the mean of its divisors is an integer number (876959640).

Almost surely, 2^6403073809 is an apocalyptic number.

It is an amenable number.

6403073809 is a deficient number, since it is larger than the sum of its proper divisors (612603311).

6403073809 is a wasteful number, since it uses less digits than its factorization.

6403073809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542151.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 6403073809 is about 80019.2090000895. The cubic root of 6403073809 is about 1856.9327224872.

The spelling of 6403073809 in words is "six billion, four hundred three million, seventy-three thousand, eight hundred nine".