28494259177 has 2 divisors, whose sum is σ = 28494259178. Its totient is φ = 28494259176.

The previous prime is 28494259139. The next prime is 28494259223. The reversal of 28494259177 is 77195249482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24135486736 + 4358772441 = 155356^2 + 66021^2 .

It is a cyclic number.

It is not a de Polignac number, because 28494259177 - 2²⁷ = 28360041449 is a prime.

It is not a weakly prime, because it can be changed into another prime (28494256177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14247129588 + 14247129589.

It is an arithmetic number, because the mean of its divisors is an integer number (14247129589).

Almost surely, 2^28494259177 is an apocalyptic number.

It is an amenable number.

28494259177 is a deficient number, since it is larger than the sum of its proper divisors (1).

28494259177 is an equidigital number, since it uses as much as digits as its factorization.

28494259177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 58.

The spelling of 28494259177 in words is "twenty-eight billion, four hundred ninety-four million, two hundred fifty-nine thousand, one hundred seventy-seven".