646323424323646 has 8 divisors (see below), whose sum is σ = 969501426972624. Its totient is φ = 323156281999440.

The previous prime is 646323424323623. The next prime is 646323424323671.

646323424323646 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2714932410 + ... + 2715170461.

It is an arithmetic number, because the mean of its divisors is an integer number (121187678371578).

Almost surely, 2^{646323424323646} is an apocalyptic number.

646323424323646 is a deficient number, since it is larger than the sum of its proper divisors (323178002648978).

646323424323646 is a wasteful number, since it uses less digits than its factorization.

646323424323646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5430162386.

The product of its digits is 214990848, while the sum is 58.

The spelling of 646323424323646 in words is "six hundred forty-six trillion, three hundred twenty-three billion, four hundred twenty-four million, three hundred twenty-three thousand, six hundred forty-six".