28364217767 has 2 divisors, whose sum is σ = 28364217768. Its totient is φ = 28364217766.

The previous prime is 28364217731. The next prime is 28364217769. The reversal of 28364217767 is 76771246382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28364217767 - 2¹² = 28364213671 is a prime.

Together with 28364217769, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28364217769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14182108883 + 14182108884.

It is an arithmetic number, because the mean of its divisors is an integer number (14182108884).

Almost surely, 2^28364217767 is an apocalyptic number.

28364217767 is a deficient number, since it is larger than the sum of its proper divisors (1).

28364217767 is an equidigital number, since it uses as much as digits as its factorization.

28364217767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4741632, while the sum is 53.

The spelling of 28364217767 in words is "twenty-eight billion, three hundred sixty-four million, two hundred seventeen thousand, seven hundred sixty-seven".