28147927167799 has 2 divisors, whose sum is σ = 28147927167800. Its totient is φ = 28147927167798.

The previous prime is 28147927167781. The next prime is 28147927167851. The reversal of 28147927167799 is 99776172974182.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28147927167799 - 2³¹ = 28145779684151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28147927162799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14073963583899 + 14073963583900.

It is an arithmetic number, because the mean of its divisors is an integer number (14073963583900).

Almost surely, 2^{28147927167799} is an apocalyptic number.

28147927167799 is a deficient number, since it is larger than the sum of its proper divisors (1).

28147927167799 is an equidigital number, since it uses as much as digits as its factorization.

28147927167799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344252672, while the sum is 79.

The spelling of 28147927167799 in words is "twenty-eight trillion, one hundred forty-seven billion, nine hundred twenty-seven million, one hundred sixty-seven thousand, seven hundred ninety-nine".