6449140834 has 8 divisors (see below), whose sum is σ = 9674422380. Its totient is φ = 3224333376.

The previous prime is 6449140829. The next prime is 6449140847. The reversal of 6449140834 is 4380419446.

It can be written as a sum of positive squares in 2 ways, for example, as 5851485025 + 597655809 = 76495^2 + 24447^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82299 + ... + 140254.

Almost surely, 2^6449140834 is an apocalyptic number.

6449140834 is a deficient number, since it is larger than the sum of its proper divisors (3225281546).

6449140834 is a wasteful number, since it uses less digits than its factorization.

6449140834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237044.

The product of its (nonzero) digits is 331776, while the sum is 43.

The square root of 6449140834 is about 80306.5429090308. The cubic root of 6449140834 is about 1861.3753301580.

The spelling of 6449140834 in words is "six billion, four hundred forty-nine million, one hundred forty thousand, eight hundred thirty-four".