28289425084 has 6 divisors (see below), whose sum is σ = 49506493904. Its totient is φ = 14144712540.

The previous prime is 28289425019. The next prime is 28289425121. The reversal of 28289425084 is 48052498282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3536178132 + ... + 3536178139.

Almost surely, 2^28289425084 is an apocalyptic number.

It is an amenable number.

28289425084 is a deficient number, since it is larger than the sum of its proper divisors (21217068820).

28289425084 is a wasteful number, since it uses less digits than its factorization.

28289425084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7072356275 (or 7072356273 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 52.

The spelling of 28289425084 in words is "twenty-eight billion, two hundred eighty-nine million, four hundred twenty-five thousand, eighty-four".