28216882767 has 8 divisors (see below), whose sum is σ = 39602642560. Its totient is φ = 17821189080.

The previous prime is 28216882739. The next prime is 28216882781. The reversal of 28216882767 is 76728861282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28216882767 - 2¹² = 28216878671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 495033031 = 28216882767 / (2 + 8 + 2 + 1 + 6 + 8 + 8 + 2 + 7 + 6 + 7).

It is a Duffinian number.

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 in 7 ways as a sum of consecutive naturals, for example, 247516459 + ... + 247516572.

It is an arithmetic number, because the mean of its divisors is an integer number (4950330320).

Almost surely, 2^28216882767 is an apocalyptic number.

28216882767 is a deficient number, since it is larger than the sum of its proper divisors (11385759793).

28216882767 is a wasteful number, since it uses less digits than its factorization.

28216882767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495033053.

The product of its digits is 7225344, while the sum is 57.

The spelling of 28216882767 in words is "twenty-eight billion, two hundred sixteen million, eight hundred eighty-two thousand, seven hundred sixty-seven".