28601764822243 has 2 divisors, whose sum is σ = 28601764822244. Its totient is φ = 28601764822242.

The previous prime is 28601764822201. The next prime is 28601764822249. The reversal of 28601764822243 is 34222846710682.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28601764822243 is a prime.

It is not a weakly prime, because it can be changed into another prime (28601764822249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14300882411121 + 14300882411122.

It is an arithmetic number, because the mean of its divisors is an integer number (14300882411122).

Almost surely, 2^{28601764822243} is an apocalyptic number.

28601764822243 is a deficient number, since it is larger than the sum of its proper divisors (1).

28601764822243 is an equidigital number, since it uses as much as digits as its factorization.

28601764822243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12386304, while the sum is 55.

The spelling of 28601764822243 in words is "twenty-eight trillion, six hundred one billion, seven hundred sixty-four million, eight hundred twenty-two thousand, two hundred forty-three".