27365510201 has 2 divisors, whose sum is σ = 27365510202. Its totient is φ = 27365510200.

The previous prime is 27365510197. The next prime is 27365510231. The reversal of 27365510201 is 10201556372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25993178176 + 1372332025 = 161224^2 + 37045^2 .

It is a cyclic number.

It is not a de Polignac number, because 27365510201 - 2² = 27365510197 is a prime.

It is a super-2 number, since 2×27365510201² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (27365510231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13682755100 + 13682755101.

It is an arithmetic number, because the mean of its divisors is an integer number (13682755101).

Almost surely, 2^27365510201 is an apocalyptic number.

It is an amenable number.

27365510201 is a deficient number, since it is larger than the sum of its proper divisors (1).

27365510201 is an equidigital number, since it uses as much as digits as its factorization.

27365510201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 32.

The spelling of 27365510201 in words is "twenty-seven billion, three hundred sixty-five million, five hundred ten thousand, two hundred one".