28074494688 has 48 divisors (see below), whose sum is σ = 78030585360. Its totient is φ = 8807684096.

The previous prime is 28074494683. The next prime is 28074494713. The reversal of 28074494688 is 88649447082.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28074494681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8599623 + ... + 8602886.

It is an arithmetic number, because the mean of its divisors is an integer number (1625637195).

Almost surely, 2^28074494688 is an apocalyptic number.

It is an amenable number.

28074494688 is an abundant number, since it is smaller than the sum of its proper divisors (49956090672).

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

28074494688 is a wasteful number, since it uses less digits than its factorization.

28074494688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17202539 (or 17202531 counting only the distinct ones).

The product of its (nonzero) digits is 24772608, while the sum is 60.

The spelling of 28074494688 in words is "twenty-eight billion, seventy-four million, four hundred ninety-four thousand, six hundred eighty-eight".