426817644512 has 96 divisors (see below), whose sum is σ = 978869707200. Its totient is φ = 179395227648.

The previous prime is 426817644499. The next prime is 426817644521. The reversal of 426817644512 is 215446718624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35241914 + ... + 35254022.

It is an arithmetic number, because the mean of its divisors is an integer number (10196559450).

Almost surely, 2^426817644512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426817644512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (489434853600).

426817644512 is an abundant number, since it is smaller than the sum of its proper divisors (552052062688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

426817644512 is a wasteful number, since it uses less digits than its factorization.

426817644512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15148 (or 15140 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 50.

The spelling of 426817644512 in words is "four hundred twenty-six billion, eight hundred seventeen million, six hundred forty-four thousand, five hundred twelve".