28782227267 has 2 divisors, whose sum is σ = 28782227268. Its totient is φ = 28782227266.

The previous prime is 28782227239. The next prime is 28782227291. The reversal of 28782227267 is 76272228782.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28782227267 - 2²⁸ = 28513791811 is a prime.

It is not a weakly prime, because it can be changed into another prime (28782227207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14391113633 + 14391113634.

It is an arithmetic number, because the mean of its divisors is an integer number (14391113634).

Almost surely, 2^28782227267 is an apocalyptic number.

28782227267 is a deficient number, since it is larger than the sum of its proper divisors (1).

28782227267 is an equidigital number, since it uses as much as digits as its factorization.

28782227267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4214784, while the sum is 53.

The spelling of 28782227267 in words is "twenty-eight billion, seven hundred eighty-two million, two hundred twenty-seven thousand, two hundred sixty-seven".