6834664385 has 16 divisors (see below), whose sum is σ = 8275279872. Its totient is φ = 5418705600.

The previous prime is 6834664379. The next prime is 6834664391. The reversal of 6834664385 is 5834664386.

It is an interprime number because it is at equal distance from previous prime (6834664379) and next prime (6834664391).

It is not a de Polignac number, because 6834664385 - 2¹⁰ = 6834663361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623855 + ... + 634715.

It is an arithmetic number, because the mean of its divisors is an integer number (517204992).

Almost surely, 2^6834664385 is an apocalyptic number.

It is an amenable number.

6834664385 is a deficient number, since it is larger than the sum of its proper divisors (1440615487).

6834664385 is a wasteful number, since it uses less digits than its factorization.

6834664385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11984.

The product of its digits is 9953280, while the sum is 53.

The square root of 6834664385 is about 82672.0290364280. The cubic root of 6834664385 is about 1897.7502813807.

Subtracting from 6834664385 its reverse (5834664386), we obtain a palindrome (999999999).

The spelling of 6834664385 in words is "six billion, eight hundred thirty-four million, six hundred sixty-four thousand, three hundred eighty-five".