27071550361 has 2 divisors, whose sum is σ = 27071550362. Its totient is φ = 27071550360.

The previous prime is 27071550307. The next prime is 27071550371. The reversal of 27071550361 is 16305517072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26922246400 + 149303961 = 164080^2 + 12219^2 .

It is a cyclic number.

It is not a de Polignac number, because 27071550361 - 2⁹ = 27071549849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27071550361.

It is not a weakly prime, because it can be changed into another prime (27071550371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13535775180 + 13535775181.

It is an arithmetic number, because the mean of its divisors is an integer number (13535775181).

Almost surely, 2^27071550361 is an apocalyptic number.

It is an amenable number.

27071550361 is a deficient number, since it is larger than the sum of its proper divisors (1).

27071550361 is an equidigital number, since it uses as much as digits as its factorization.

27071550361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44100, while the sum is 37.

The spelling of 27071550361 in words is "twenty-seven billion, seventy-one million, five hundred fifty thousand, three hundred sixty-one".