28684936412273 has 2 divisors, whose sum is σ = 28684936412274. Its totient is φ = 28684936412272.

The previous prime is 28684936412161. The next prime is 28684936412351. The reversal of 28684936412273 is 37221463948682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28684936412224 + 49 = 5355832^2 + 7^2 .

It is a cyclic number.

It is not a de Polignac number, because 28684936412273 - 2³² = 28680641444977 is a prime.

It is a super-2 number, since 2×28684936412273² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28684936472273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14342468206136 + 14342468206137.

It is an arithmetic number, because the mean of its divisors is an integer number (14342468206137).

Almost surely, 2^{28684936412273} is an apocalyptic number.

It is an amenable number.

28684936412273 is a deficient number, since it is larger than the sum of its proper divisors (1).

28684936412273 is an equidigital number, since it uses as much as digits as its factorization.

28684936412273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 167215104, while the sum is 65.

The spelling of 28684936412273 in words is "twenty-eight trillion, six hundred eighty-four billion, nine hundred thirty-six million, four hundred twelve thousand, two hundred seventy-three".