27717280601 has 2 divisors, whose sum is σ = 27717280602. Its totient is φ = 27717280600.

The previous prime is 27717280571. The next prime is 27717280649. The reversal of 27717280601 is 10608271772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26888128576 + 829152025 = 163976^2 + 28795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27717280601 is a prime.

It is not a weakly prime, because it can be changed into another prime (27717280651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13858640300 + 13858640301.

It is an arithmetic number, because the mean of its divisors is an integer number (13858640301).

Almost surely, 2^27717280601 is an apocalyptic number.

It is an amenable number.

27717280601 is a deficient number, since it is larger than the sum of its proper divisors (1).

27717280601 is an equidigital number, since it uses as much as digits as its factorization.

27717280601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 41.

The spelling of 27717280601 in words is "twenty-seven billion, seven hundred seventeen million, two hundred eighty thousand, six hundred one".