28601764822271 has 2 divisors, whose sum is σ = 28601764822272. Its totient is φ = 28601764822270.

The previous prime is 28601764822249. The next prime is 28601764822289. The reversal of 28601764822271 is 17222846710682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28601764822271 - 2²² = 28601760627967 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28601764822201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14300882411135 + 14300882411136.

It is an arithmetic number, because the mean of its divisors is an integer number (14300882411136).

Almost surely, 2^{28601764822271} is an apocalyptic number.

28601764822271 is a deficient number, since it is larger than the sum of its proper divisors (1).

28601764822271 is an equidigital number, since it uses as much as digits as its factorization.

28601764822271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7225344, while the sum is 56.

The spelling of 28601764822271 in words is "twenty-eight trillion, six hundred one billion, seven hundred sixty-four million, eight hundred twenty-two thousand, two hundred seventy-one".