28316086788 has 48 divisors (see below), whose sum is σ = 76317159744. Its totient is φ = 8075888640.

The previous prime is 28316086739. The next prime is 28316086793. The reversal of 28316086788 is 88768061382.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6307045 + ... + 6311532.

It is an arithmetic number, because the mean of its divisors is an integer number (1589940828).

Almost surely, 2^28316086788 is an apocalyptic number.

It is an amenable number.

28316086788 is an abundant number, since it is smaller than the sum of its proper divisors (48001072956).

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

28316086788 is a wasteful number, since it uses less digits than its factorization.

28316086788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12618612 (or 12618610 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 57.

The spelling of 28316086788 in words is "twenty-eight billion, three hundred sixteen million, eighty-six thousand, seven hundred eighty-eight".