28140831116 has 12 divisors (see below), whose sum is σ = 49247977632. Its totient is φ = 14069980368.

The previous prime is 28140831097. The next prime is 28140831149. The reversal of 28140831116 is 61113804182.

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, 68966 + ... + 247058.

It is an arithmetic number, because the mean of its divisors is an integer number (4103998136).

Almost surely, 2^28140831116 is an apocalyptic number.

It is an amenable number.

28140831116 is a deficient number, since it is larger than the sum of its proper divisors (21107146516).

28140831116 is a wasteful number, since it uses less digits than its factorization.

28140831116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217600 (or 217598 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The spelling of 28140831116 in words is "twenty-eight billion, one hundred forty million, eight hundred thirty-one thousand, one hundred sixteen".