428741633784 has 32 divisors (see below), whose sum is σ = 1071870203520. Its totient is φ = 142911728736.

The previous prime is 428741633783. The next prime is 428741633839. The reversal of 428741633784 is 487336147824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428741633783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2828877 + ... + 2976579.

It is an arithmetic number, because the mean of its divisors is an integer number (33495943860).

Almost surely, 2^428741633784 is an apocalyptic number.

It is an amenable number.

428741633784 is an abundant number, since it is smaller than the sum of its proper divisors (643128569736).

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

428741633784 is a wasteful number, since it uses less digits than its factorization.

428741633784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268659 (or 268655 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 57.

The spelling of 428741633784 in words is "four hundred twenty-eight billion, seven hundred forty-one million, six hundred thirty-three thousand, seven hundred eighty-four".