28130926888 has 64 divisors (see below), whose sum is σ = 54516913920. Its totient is φ = 13599782400.

The previous prime is 28130926867. The next prime is 28130926903. The reversal of 28130926888 is 88862903182.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 27551818 + ... + 27552838.

It is an arithmetic number, because the mean of its divisors is an integer number (851826780).

Almost surely, 2^28130926888 is an apocalyptic number.

It is an amenable number.

28130926888 is a deficient number, since it is larger than the sum of its proper divisors (26385987032).

28130926888 is a wasteful number, since it uses less digits than its factorization.

28130926888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738 (or 1734 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 55.

The spelling of 28130926888 in words is "twenty-eight billion, one hundred thirty million, nine hundred twenty-six thousand, eight hundred eighty-eight".