28341645517 has 2 divisors, whose sum is σ = 28341645518. Its totient is φ = 28341645516.

The previous prime is 28341645481. The next prime is 28341645539. The reversal of 28341645517 is 71554614382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28333642276 + 8003241 = 168326^2 + 2829^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28341645517 is a prime.

It is a super-2 number, since 2×28341645517² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28341645587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14170822758 + 14170822759.

It is an arithmetic number, because the mean of its divisors is an integer number (14170822759).

Almost surely, 2^28341645517 is an apocalyptic number.

It is an amenable number.

28341645517 is a deficient number, since it is larger than the sum of its proper divisors (1).

28341645517 is an equidigital number, since it uses as much as digits as its factorization.

28341645517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806400, while the sum is 46.

The spelling of 28341645517 in words is "twenty-eight billion, three hundred forty-one million, six hundred forty-five thousand, five hundred seventeen".