426605881590 has 48 divisors (see below), whose sum is σ = 1267628907168. Its totient is φ = 97509915648.

The previous prime is 426605881571. The next prime is 426605881619. The reversal of 426605881590 is 95188506624.

426605881590 is a `hidden beast` number, since 4 + 2 + 6 + 6 + 0 + 588 + 1 + 59 + 0 = 666.

426605881590 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×426605881590² (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 23 ways as a sum of consecutive naturals, for example, 338575467 + ... + 338576726.

It is an arithmetic number, because the mean of its divisors is an integer number (26408935566).

Almost surely, 2^426605881590 is an apocalyptic number.

426605881590 is an abundant number, since it is smaller than the sum of its proper divisors (841023025578).

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

426605881590 is a wasteful number, since it uses less digits than its factorization.

426605881590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677152213 (or 677152210 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 426605881590 in words is "four hundred twenty-six billion, six hundred five million, eight hundred eighty-one thousand, five hundred ninety".