280027118849 has 2 divisors, whose sum is σ = 280027118850. Its totient is φ = 280027118848.

The previous prime is 280027118731. The next prime is 280027118857. The reversal of 280027118849 is 948811720082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 271239931249 + 8787187600 = 520807^2 + 93740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-280027118849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 280027118797 and 280027118806.

It is not a weakly prime, because it can be changed into another prime (280027118149) 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, 140013559424 + 140013559425.

It is an arithmetic number, because the mean of its divisors is an integer number (140013559425).

Almost surely, 2^280027118849 is an apocalyptic number.

It is an amenable number.

280027118849 is a deficient number, since it is larger than the sum of its proper divisors (1).

280027118849 is an equidigital number, since it uses as much as digits as its factorization.

280027118849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 516096, while the sum is 50.

The spelling of 280027118849 in words is "two hundred eighty billion, twenty-seven million, one hundred eighteen thousand, eight hundred forty-nine".