27298265873 has 2 divisors, whose sum is σ = 27298265874. Its totient is φ = 27298265872.

The previous prime is 27298265861. The next prime is 27298265881. The reversal of 27298265873 is 37856289272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18662838544 + 8635427329 = 136612^2 + 92927^2 .

It is a cyclic number.

It is not a de Polignac number, because 27298265873 - 2⁴ = 27298265857 is a prime.

It is not a weakly prime, because it can be changed into another prime (27298265843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13649132936 + 13649132937.

It is an arithmetic number, because the mean of its divisors is an integer number (13649132937).

Almost surely, 2^27298265873 is an apocalyptic number.

It is an amenable number.

27298265873 is a deficient number, since it is larger than the sum of its proper divisors (1).

27298265873 is an equidigital number, since it uses as much as digits as its factorization.

27298265873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20321280, while the sum is 59.

The spelling of 27298265873 in words is "twenty-seven billion, two hundred ninety-eight million, two hundred sixty-five thousand, eight hundred seventy-three".