27722678273 has 2 divisors, whose sum is σ = 27722678274. Its totient is φ = 27722678272.

The previous prime is 27722678177. The next prime is 27722678299. The reversal of 27722678273 is 37287622772.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16928091664 + 10794586609 = 130108^2 + 103897^2 .

It is a cyclic number.

It is not a de Polignac number, because 27722678273 - 2¹⁰ = 27722677249 is a prime.

It is a super-3 number, since 3×27722678273³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (27722678773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13861339136 + 13861339137.

It is an arithmetic number, because the mean of its divisors is an integer number (13861339137).

Almost surely, 2^27722678273 is an apocalyptic number.

It is an amenable number.

27722678273 is a deficient number, since it is larger than the sum of its proper divisors (1).

27722678273 is an equidigital number, since it uses as much as digits as its factorization.

27722678273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5531904, while the sum is 53.

The spelling of 27722678273 in words is "twenty-seven billion, seven hundred twenty-two million, six hundred seventy-eight thousand, two hundred seventy-three".