420064285806 has 96 divisors (see below), whose sum is σ = 997946127360. Its totient is φ = 126643608000.

The previous prime is 420064285801. The next prime is 420064285813. The reversal of 420064285806 is 608582460024.

420064285806 is a `hidden beast` number, since 4 + 2 + 0 + 0 + 64 + 2 + 8 + 580 + 6 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420064285801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61562511 + ... + 61569333.

It is an arithmetic number, because the mean of its divisors is an integer number (10395272160).

Almost surely, 2^420064285806 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420064285806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (498973063680).

420064285806 is an abundant number, since it is smaller than the sum of its proper divisors (577881841554).

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

420064285806 is a wasteful number, since it uses less digits than its factorization.

420064285806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8382 (or 8379 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 420064285806 in words is "four hundred twenty billion, sixty-four million, two hundred eighty-five thousand, eight hundred six".