27265227397 has 2 divisors, whose sum is σ = 27265227398. Its totient is φ = 27265227396.

The previous prime is 27265227383. The next prime is 27265227421. The reversal of 27265227397 is 79372256272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14623823041 + 12641404356 = 120929^2 + 112434^2 .

It is a cyclic number.

It is not a de Polignac number, because 27265227397 - 2²⁷ = 27131009669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27265227797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13632613698 + 13632613699.

It is an arithmetic number, because the mean of its divisors is an integer number (13632613699).

Almost surely, 2^27265227397 is an apocalyptic number.

It is an amenable number.

27265227397 is a deficient number, since it is larger than the sum of its proper divisors (1).

27265227397 is an equidigital number, since it uses as much as digits as its factorization.

27265227397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4445280, while the sum is 52.

The spelling of 27265227397 in words is "twenty-seven billion, two hundred sixty-five million, two hundred twenty-seven thousand, three hundred ninety-seven".