6399831246 has 16 divisors (see below), whose sum is σ = 12816715008. Its totient is φ = 2130435000.

The previous prime is 6399831227. The next prime is 6399831247. The reversal of 6399831246 is 6421389936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6399831247) 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, 705640 + ... + 714651.

It is an arithmetic number, because the mean of its divisors is an integer number (801044688).

Almost surely, 2^6399831246 is an apocalyptic number.

6399831246 is an abundant number, since it is smaller than the sum of its proper divisors (6416883762).

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

6399831246 is a wasteful number, since it uses less digits than its factorization.

6399831246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421047.

The product of its digits is 1679616, while the sum is 51.

The square root of 6399831246 is about 79998.9452805473. The cubic root of 6399831246 is about 1856.6192148291.

The spelling of 6399831246 in words is "six billion, three hundred ninety-nine million, eight hundred thirty-one thousand, two hundred forty-six".