28604871128 has 8 divisors (see below), whose sum is σ = 53634133380. Its totient is φ = 14302435560.

The previous prime is 28604871101. The next prime is 28604871131. The reversal of 28604871128 is 82117840682.

It is a tau number, because it is divible by the number of its divisors (8).

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, 1787804438 + ... + 1787804453.

Almost surely, 2^28604871128 is an apocalyptic number.

It is an amenable number.

28604871128 is a deficient number, since it is larger than the sum of its proper divisors (25029262252).

28604871128 is a wasteful number, since it uses less digits than its factorization.

28604871128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3575608897 (or 3575608893 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 47.

The spelling of 28604871128 in words is "twenty-eight billion, six hundred four million, eight hundred seventy-one thousand, one hundred twenty-eight".