28009672114 has 4 divisors (see below), whose sum is σ = 42014508174. Its totient is φ = 14004836056.

The previous prime is 28009672109. The next prime is 28009672123. The reversal of 28009672114 is 41127690082.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41127690082 = 2 ⋅20563845041.

It can be written as a sum of positive squares in only one way, i.e., 14742087889 + 13267584225 = 121417^2 + 115185^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7002418027 + ... + 7002418030.

Almost surely, 2^28009672114 is an apocalyptic number.

28009672114 is a deficient number, since it is larger than the sum of its proper divisors (14004836060).

28009672114 is a wasteful number, since it uses less digits than its factorization.

28009672114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14004836059.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 28009672114 in words is "twenty-eight billion, nine million, six hundred seventy-two thousand, one hundred fourteen".