428064506870 has 256 divisors, whose sum is σ = 1097171453952. Its totient is φ = 115726786560.

The previous prime is 428064506869. The next prime is 428064506893. The reversal of 428064506870 is 78605460824.

It is a happy number.

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 127 ways as a sum of consecutive naturals, for example, 128817029 + ... + 128820351.

It is an arithmetic number, because the mean of its divisors is an integer number (4285825992).

Almost surely, 2^428064506870 is an apocalyptic number.

428064506870 is an abundant number, since it is smaller than the sum of its proper divisors (669106947082).

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

428064506870 is a wasteful number, since it uses less digits than its factorization.

428064506870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4135.

The product of its (nonzero) digits is 2580480, while the sum is 50.

The spelling of 428064506870 in words is "four hundred twenty-eight billion, sixty-four million, five hundred six thousand, eight hundred seventy".