28141949028 has 48 divisors (see below), whose sum is σ = 69364977920. Its totient is φ = 8855508384.

The previous prime is 28141948999. The next prime is 28141949051. The reversal of 28141949028 is 82094914182.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153550 + ... + 282597.

Almost surely, 2^28141949028 is an apocalyptic number.

It is an amenable number.

28141949028 is an abundant number, since it is smaller than the sum of its proper divisors (41223028892).

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

28141949028 is a wasteful number, since it uses less digits than its factorization.

28141949028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436456 (or 436454 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 48.

The spelling of 28141949028 in words is "twenty-eight billion, one hundred forty-one million, nine hundred forty-nine thousand, twenty-eight".