27516003703081 has 2 divisors, whose sum is σ = 27516003703082. Its totient is φ = 27516003703080.

The previous prime is 27516003703007. The next prime is 27516003703103. The reversal of 27516003703081 is 18030730061572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23948211603481 + 3567792099600 = 4893691^2 + 1888860^2 .

It is a cyclic number.

It is not a de Polignac number, because 27516003703081 - 2¹⁷ = 27516003572009 is a prime.

It is a super-2 number, since 2×27516003703081² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27516003733081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13758001851540 + 13758001851541.

It is an arithmetic number, because the mean of its divisors is an integer number (13758001851541).

Almost surely, 2^{27516003703081} is an apocalyptic number.

It is an amenable number.

27516003703081 is a deficient number, since it is larger than the sum of its proper divisors (1).

27516003703081 is an equidigital number, since it uses as much as digits as its factorization.

27516003703081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 27516003703081 in words is "twenty-seven trillion, five hundred sixteen billion, three million, seven hundred three thousand, eighty-one".