428140099844 has 24 divisors (see below), whose sum is σ = 766744218240. Its totient is φ = 209071293984.

The previous prime is 428140099843. The next prime is 428140099859. The reversal of 428140099844 is 448990041824.

It is not an unprimeable number, because it can be changed into a prime (428140099843) 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 7 ways as a sum of consecutive naturals, for example, 1730117 + ... + 1962035.

It is an arithmetic number, because the mean of its divisors is an integer number (31947675760).

Almost surely, 2^428140099844 is an apocalyptic number.

It is an amenable number.

428140099844 is a deficient number, since it is larger than the sum of its proper divisors (338604118396).

428140099844 is a wasteful number, since it uses less digits than its factorization.

428140099844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242699 (or 242697 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 53.

The spelling of 428140099844 in words is "four hundred twenty-eight billion, one hundred forty million, ninety-nine thousand, eight hundred forty-four".