28424618688 has 28 divisors (see below), whose sum is σ = 75206804120. Its totient is φ = 9474872832.

The previous prime is 28424618657. The next prime is 28424618699. The reversal of 28424618688 is 88681642482.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74022253 + ... + 74022636.

It is an arithmetic number, because the mean of its divisors is an integer number (2685957290).

Almost surely, 2^28424618688 is an apocalyptic number.

It is an amenable number.

28424618688 is an abundant number, since it is smaller than the sum of its proper divisors (46782185432).

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

28424618688 is a wasteful number, since it uses less digits than its factorization.

28424618688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148044904 (or 148044894 counting only the distinct ones).

The product of its digits is 9437184, while the sum is 57.

The spelling of 28424618688 in words is "twenty-eight billion, four hundred twenty-four million, six hundred eighteen thousand, six hundred eighty-eight".