28216882718 has 4 divisors (see below), whose sum is σ = 42325324080. Its totient is φ = 14108441358.

The previous prime is 28216882717. The next prime is 28216882739. The reversal of 28216882718 is 81728861282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81728861282 = 2 ⋅40864430641.

It is a self number, because there is not a number n which added to its sum of digits gives 28216882718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28216882717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7054220678 + ... + 7054220681.

It is an arithmetic number, because the mean of its divisors is an integer number (10581331020).

Almost surely, 2^28216882718 is an apocalyptic number.

28216882718 is a deficient number, since it is larger than the sum of its proper divisors (14108441362).

28216882718 is a wasteful number, since it uses less digits than its factorization.

28216882718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14108441361.

The product of its digits is 1376256, while the sum is 53.

The spelling of 28216882718 in words is "twenty-eight billion, two hundred sixteen million, eight hundred eighty-two thousand, seven hundred eighteen".