426646333422556 has 24 divisors (see below), whose sum is σ = 804829290715184. Its totient is φ = 196726333910400.

The previous prime is 426646333422553. The next prime is 426646333422563. The reversal of 426646333422556 is 655224333646624.

It is a junction number, because it is equal to n+sod(n) for n = 426646333422494 and 426646333422503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426646333422553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3903245625 + ... + 3903354928.

Almost surely, 2^{426646333422556} is an apocalyptic number.

It is an amenable number.

426646333422556 is a deficient number, since it is larger than the sum of its proper divisors (378182957292628).

426646333422556 is a wasteful number, since it uses less digits than its factorization.

426646333422556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7806601621 (or 7806601619 counting only the distinct ones).

The product of its digits is 447897600, while the sum is 61.

The spelling of 426646333422556 in words is "four hundred twenty-six trillion, six hundred forty-six billion, three hundred thirty-three million, four hundred twenty-two thousand, five hundred fifty-six".