28001481702329 has 2 divisors, whose sum is σ = 28001481702330. Its totient is φ = 28001481702328.

The previous prime is 28001481702263. The next prime is 28001481702349. The reversal of 28001481702329 is 92320718410082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25980193943929 + 2021287758400 = 5097077^2 + 1421720^2 .

It is a cyclic number.

It is not a de Polignac number, because 28001481702329 - 2²⁴ = 28001464925113 is a prime.

It is not a weakly prime, because it can be changed into another prime (28001481702349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14000740851164 + 14000740851165.

It is an arithmetic number, because the mean of its divisors is an integer number (14000740851165).

Almost surely, 2^{28001481702329} is an apocalyptic number.

It is an amenable number.

28001481702329 is a deficient number, since it is larger than the sum of its proper divisors (1).

28001481702329 is an equidigital number, since it uses as much as digits as its factorization.

28001481702329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 28001481702329 in words is "twenty-eight trillion, one billion, four hundred eighty-one million, seven hundred two thousand, three hundred twenty-nine".