6785434345 has 4 divisors (see below), whose sum is σ = 8142521220. Its totient is φ = 5428347472.

The previous prime is 6785434333. The next prime is 6785434351. The reversal of 6785434345 is 5434345876.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3329405401 + 3456028944 = 57701^2 + 58788^2 .

It is a cyclic number.

It is not a de Polignac number, because 6785434345 - 2²⁵ = 6751879913 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678543430 + ... + 678543439.

It is an arithmetic number, because the mean of its divisors is an integer number (2035630305).

Almost surely, 2^6785434345 is an apocalyptic number.

It is an amenable number.

6785434345 is a deficient number, since it is larger than the sum of its proper divisors (1357086875).

6785434345 is a wasteful number, since it uses less digits than its factorization.

6785434345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357086874.

The product of its digits is 4838400, while the sum is 49.

The square root of 6785434345 is about 82373.7479115768. The cubic root of 6785434345 is about 1893.1828032359.

The spelling of 6785434345 in words is "six billion, seven hundred eighty-five million, four hundred thirty-four thousand, three hundred forty-five".