426722989056 has 704 divisors, whose sum is σ = 1447598573568. Its totient is φ = 108774162432.

The previous prime is 426722988931. The next prime is 426722989111. The reversal of 426722989056 is 650989227624.

It is a super-2 number, since 2×426722989056² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1229749075 + ... + 1229749421.

Almost surely, 2^426722989056 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 426722989056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (723799286784).

426722989056 is an abundant number, since it is smaller than the sum of its proper divisors (1020875584512).

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

426722989056 is a wasteful number, since it uses less digits than its factorization.

426722989056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 60.

The spelling of 426722989056 in words is "four hundred twenty-six billion, seven hundred twenty-two million, nine hundred eighty-nine thousand, fifty-six".