27150752617 has 2 divisors, whose sum is σ = 27150752618. Its totient is φ = 27150752616.

The previous prime is 27150752597. The next prime is 27150752623. The reversal of 27150752617 is 71625705172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26876651481 + 274101136 = 163941^2 + 16556^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27150752617 is a prime.

It is not a weakly prime, because it can be changed into another prime (27150752647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13575376308 + 13575376309.

It is an arithmetic number, because the mean of its divisors is an integer number (13575376309).

Almost surely, 2^27150752617 is an apocalyptic number.

It is an amenable number.

27150752617 is a deficient number, since it is larger than the sum of its proper divisors (1).

27150752617 is an equidigital number, since it uses as much as digits as its factorization.

27150752617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 205800, while the sum is 43.

The spelling of 27150752617 in words is "twenty-seven billion, one hundred fifty million, seven hundred fifty-two thousand, six hundred seventeen".