27001733813 has 2 divisors, whose sum is σ = 27001733814. Its totient is φ = 27001733812.

The previous prime is 27001733797. The next prime is 27001733819. The reversal of 27001733813 is 31833710072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19410619684 + 7591114129 = 139322^2 + 87127^2 .

It is a cyclic number.

It is not a de Polignac number, because 27001733813 - 2⁴ = 27001733797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27001733819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13500866906 + 13500866907.

It is an arithmetic number, because the mean of its divisors is an integer number (13500866907).

Almost surely, 2^27001733813 is an apocalyptic number.

It is an amenable number.

27001733813 is a deficient number, since it is larger than the sum of its proper divisors (1).

27001733813 is an equidigital number, since it uses as much as digits as its factorization.

27001733813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The spelling of 27001733813 in words is "twenty-seven billion, one million, seven hundred thirty-three thousand, eight hundred thirteen".