6839179221631 has 4 divisors (see below), whose sum is σ = 6845110861312. Its totient is φ = 6833247581952.

The previous prime is 6839179221629. The next prime is 6839179221647. The reversal of 6839179221631 is 1361229719386.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6839179221631 - 2¹ = 6839179221629 is a prime.

It is a super-2 number, since 2×6839179221631² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6839179221431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2965818111 + ... + 2965820416.

It is an arithmetic number, because the mean of its divisors is an integer number (1711277715328).

Almost surely, 2^{6839179221631} is an apocalyptic number.

6839179221631 is a deficient number, since it is larger than the sum of its proper divisors (5931639681).

6839179221631 is a wasteful number, since it uses less digits than its factorization.

6839179221631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5931639680.

The product of its digits is 5878656, while the sum is 58.

The spelling of 6839179221631 in words is "six trillion, eight hundred thirty-nine billion, one hundred seventy-nine million, two hundred twenty-one thousand, six hundred thirty-one".