6431216121346 has 8 divisors (see below), whose sum is σ = 9647105525244. Its totient is φ = 3215514279600.

The previous prime is 6431216121287. The next prime is 6431216121401.

6431216121346 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 6162880725225 + 268335396121 = 2482515^2 + 518011^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 6431216121299 and 6431216121308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46804785 + ... + 46941988.

Almost surely, 2^{6431216121346} is an apocalyptic number.

6431216121346 is a deficient number, since it is larger than the sum of its proper divisors (3215889403898).

6431216121346 is a wasteful number, since it uses less digits than its factorization.

6431216121346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93781076.

The product of its digits is 124416, while the sum is 40.

The spelling of 6431216121346 in words is "six trillion, four hundred thirty-one billion, two hundred sixteen million, one hundred twenty-one thousand, three hundred forty-six".