28216424167 has 2 divisors, whose sum is σ = 28216424168. Its totient is φ = 28216424166.

The previous prime is 28216424149. The next prime is 28216424227. The reversal of 28216424167 is 76142461282.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28216424167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28216424267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14108212083 + 14108212084.

It is an arithmetic number, because the mean of its divisors is an integer number (14108212084).

Almost surely, 2^28216424167 is an apocalyptic number.

28216424167 is a deficient number, since it is larger than the sum of its proper divisors (1).

28216424167 is an equidigital number, since it uses as much as digits as its factorization.

28216424167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 43.

The spelling of 28216424167 in words is "twenty-eight billion, two hundred sixteen million, four hundred twenty-four thousand, one hundred sixty-seven".