6439792434 has 16 divisors (see below), whose sum is σ = 12944308800. Its totient is φ = 2135810160.

The previous prime is 6439792393. The next prime is 6439792459. The reversal of 6439792434 is 4342979346.

It is a Curzon number.

It is an unprimeable number.

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, 2695537 + ... + 2697924.

It is an arithmetic number, because the mean of its divisors is an integer number (809019300).

Almost surely, 2^6439792434 is an apocalyptic number.

6439792434 is an abundant number, since it is smaller than the sum of its proper divisors (6504516366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6439792434 is a wasteful number, since it uses less digits than its factorization.

6439792434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5393665.

The product of its digits is 3919104, while the sum is 51.

The square root of 6439792434 is about 80248.3173281534. The cubic root of 6439792434 is about 1860.4755050898.

The spelling of 6439792434 in words is "six billion, four hundred thirty-nine million, seven hundred ninety-two thousand, four hundred thirty-four".