428106425766 has 16 divisors (see below), whose sum is σ = 856225695600. Its totient is φ = 142700001248.

The previous prime is 428106425729. The next prime is 428106425771. The reversal of 428106425766 is 667524601824.

It is a super-2 number, since 2×428106425766² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 70881 + ... + 928028.

It is an arithmetic number, because the mean of its divisors is an integer number (53514105975).

Almost surely, 2^428106425766 is an apocalyptic number.

428106425766 is an abundant number, since it is smaller than the sum of its proper divisors (428119269834).

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

428106425766 is a wasteful number, since it uses less digits than its factorization.

428106425766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070343.

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 428106425766 in words is "four hundred twenty-eight billion, one hundred six million, four hundred twenty-five thousand, seven hundred sixty-six".