9138664027 has 2 divisors, whose sum is σ = 9138664028. Its totient is φ = 9138664026.

The previous prime is 9138664009. The next prime is 9138664039. The reversal of 9138664027 is 7204668319.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9138664027 - 2¹⁹ = 9138139739 is a prime.

It is not a weakly prime, because it can be changed into another prime (9138664097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4569332013 + 4569332014.

It is an arithmetic number, because the mean of its divisors is an integer number (4569332014).

Almost surely, 2^9138664027 is an apocalyptic number.

9138664027 is a deficient number, since it is larger than the sum of its proper divisors (1).

9138664027 is an equidigital number, since it uses as much as digits as its factorization.

9138664027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 9138664027 is about 95596.3599045487. The cubic root of 9138664027 is about 2090.7121209847.

The spelling of 9138664027 in words is "nine billion, one hundred thirty-eight million, six hundred sixty-four thousand, twenty-seven".