27099046081 has 2 divisors, whose sum is σ = 27099046082. Its totient is φ = 27099046080.

The previous prime is 27099046067. The next prime is 27099046109. The reversal of 27099046081 is 18064099072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19841539600 + 7257506481 = 140860^2 + 85191^2 .

It is a cyclic number.

It is not a de Polignac number, because 27099046081 - 2¹¹ = 27099044033 is a prime.

It is a super-2 number, since 2×27099046081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27099046181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13549523040 + 13549523041.

It is an arithmetic number, because the mean of its divisors is an integer number (13549523041).

Almost surely, 2^27099046081 is an apocalyptic number.

It is an amenable number.

27099046081 is a deficient number, since it is larger than the sum of its proper divisors (1).

27099046081 is an equidigital number, since it uses as much as digits as its factorization.

27099046081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 27099046081 in words is "twenty-seven billion, ninety-nine million, forty-six thousand, eighty-one".