28142626784 has 12 divisors (see below), whose sum is σ = 55405796544. Its totient is φ = 14071313376.

The previous prime is 28142626783. The next prime is 28142626789. The reversal of 28142626784 is 48762624182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28142626783) 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 as a sum of consecutive naturals, namely, 439728512 + ... + 439728575.

It is an arithmetic number, because the mean of its divisors is an integer number (4617149712).

Almost surely, 2^28142626784 is an apocalyptic number.

It is an amenable number.

28142626784 is a deficient number, since it is larger than the sum of its proper divisors (27263169760).

28142626784 is an equidigital number, since it uses as much as digits as its factorization.

28142626784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879457097 (or 879457089 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 50.

The spelling of 28142626784 in words is "twenty-eight billion, one hundred forty-two million, six hundred twenty-six thousand, seven hundred eighty-four".