426521206645420 has 48 divisors (see below), whose sum is σ = 899292931437600. Its totient is φ = 169923240771584.

The previous prime is 426521206645283. The next prime is 426521206645439. The reversal of 426521206645420 is 24546602125624.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35638287 + ... + 46077433.

It is an arithmetic number, because the mean of its divisors is an integer number (18735269404950).

Almost surely, 2^{426521206645420} is an apocalyptic number.

It is an amenable number.

426521206645420 is an abundant number, since it is smaller than the sum of its proper divisors (472771724792180).

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

426521206645420 is a wasteful number, since it uses less digits than its factorization.

426521206645420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10447362 (or 10447360 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 49.

The spelling of 426521206645420 in words is "four hundred twenty-six trillion, five hundred twenty-one billion, two hundred six million, six hundred forty-five thousand, four hundred twenty".