27726016673 has 2 divisors, whose sum is σ = 27726016674. Its totient is φ = 27726016672.

The previous prime is 27726016663. The next prime is 27726016691. The reversal of 27726016673 is 37661062772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19548793489 + 8177223184 = 139817^2 + 90428^2 .

It is a cyclic number.

It is not a de Polignac number, because 27726016673 - 2²⁰ = 27724968097 is a prime.

It is not a weakly prime, because it can be changed into another prime (27726016603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13863008336 + 13863008337.

It is an arithmetic number, because the mean of its divisors is an integer number (13863008337).

Almost surely, 2^27726016673 is an apocalyptic number.

It is an amenable number.

27726016673 is a deficient number, since it is larger than the sum of its proper divisors (1).

27726016673 is an equidigital number, since it uses as much as digits as its factorization.

27726016673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 889056, while the sum is 47.

The spelling of 27726016673 in words is "twenty-seven billion, seven hundred twenty-six million, sixteen thousand, six hundred seventy-three".