426544636800 has 192 divisors, whose sum is σ = 1422717868800. Its totient is φ = 112305223680.

The previous prime is 426544636753. The next prime is 426544636801. The reversal of 426544636800 is 8636445624.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 426544636800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426544636801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 477187 + ... + 1039613.

It is an arithmetic number, because the mean of its divisors is an integer number (7409988900).

Almost surely, 2^426544636800 is an apocalyptic number.

426544636800 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 426544636800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711358934400).

426544636800 is an abundant number, since it is smaller than the sum of its proper divisors (996173232000).

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

426544636800 is a wasteful number, since it uses less digits than its factorization.

426544636800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562533 (or 562516 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 48.

The spelling of 426544636800 in words is "four hundred twenty-six billion, five hundred forty-four million, six hundred thirty-six thousand, eight hundred".