426621602550000 has 960 divisors, whose sum is σ = 1638865725880320. Its totient is φ = 94258944000000.

The previous prime is 426621602549999. The next prime is 426621602550043. The reversal of 426621602550000 is 55206126624.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1694424120 + ... + 1694675880.

It is an arithmetic number, because the mean of its divisors is an integer number (1707151797792).

Almost surely, 2^{426621602550000} is an apocalyptic number.

426621602550000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426621602550000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (819432862940160).

426621602550000 is an abundant number, since it is smaller than the sum of its proper divisors (1212244123330320).

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

426621602550000 is a wasteful number, since it uses less digits than its factorization.

426621602550000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251900 (or 251874 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 426621602550000 its reverse (55206126624), we get a palindrome (426676808676624).

The spelling of 426621602550000 in words is "four hundred twenty-six trillion, six hundred twenty-one billion, six hundred two million, five hundred fifty thousand".