6311939811 has 8 divisors (see below), whose sum is σ = 8417421840. Its totient is φ = 4207208832.

The previous prime is 6311939747. The next prime is 6311939827. The reversal of 6311939811 is 1189391136.

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

It is not a de Polignac number, because 6311939811 - 2⁶ = 6311939747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6311939891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167850 + ... + 201983.

It is an arithmetic number, because the mean of its divisors is an integer number (1052177730).

Almost surely, 2^6311939811 is an apocalyptic number.

6311939811 is a deficient number, since it is larger than the sum of its proper divisors (2105482029).

6311939811 is a wasteful number, since it uses less digits than its factorization.

6311939811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375525.

The product of its digits is 34992, while the sum is 42.

The square root of 6311939811 is about 79447.7174687857. The cubic root of 6311939811 is about 1848.0807767324.

The spelling of 6311939811 in words is "six billion, three hundred eleven million, nine hundred thirty-nine thousand, eight hundred eleven".