6408346397631 has 24 divisors (see below), whose sum is σ = 9038666332080. Its totient is φ = 4038029086464.

The previous prime is 6408346397627. The next prime is 6408346397659. The reversal of 6408346397631 is 1367936438046.

It is a happy number.

It is not a de Polignac number, because 6408346397631 - 2² = 6408346397627 is a prime.

It is a super-2 number, since 2×6408346397631² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6408346397671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6363876 + ... + 7301753.

It is an arithmetic number, because the mean of its divisors is an integer number (376611097170).

Almost surely, 2^{6408346397631} is an apocalyptic number.

6408346397631 is a deficient number, since it is larger than the sum of its proper divisors (2630319934449).

6408346397631 is a wasteful number, since it uses less digits than its factorization.

6408346397631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13666103 (or 13666084 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 60.

The spelling of 6408346397631 in words is "six trillion, four hundred eight billion, three hundred forty-six million, three hundred ninety-seven thousand, six hundred thirty-one".