426336065280 has 288 divisors, whose sum is σ = 1513946649600. Its totient is φ = 113611051008.

The previous prime is 426336065273. The next prime is 426336065291. The reversal of 426336065280 is 82560633624.

It is a happy number.

426336065280 is a `hidden beast` number, since 4 + 2 + 6 + 3 + 360 + 6 + 5 + 280 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63828981 + ... + 63835659.

It is an arithmetic number, because the mean of its divisors is an integer number (5256759200).

Almost surely, 2^426336065280 is an apocalyptic number.

426336065280 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 426336065280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (756973324800).

426336065280 is an abundant number, since it is smaller than the sum of its proper divisors (1087610584320).

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

426336065280 is a wasteful number, since it uses less digits than its factorization.

426336065280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8556 (or 8536 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 426336065280 in words is "four hundred twenty-six billion, three hundred thirty-six million, sixty-five thousand, two hundred eighty".