27238376387 has 2 divisors, whose sum is σ = 27238376388. Its totient is φ = 27238376386.

The previous prime is 27238376329. The next prime is 27238376401. The reversal of 27238376387 is 78367383272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27238376387 - 2⁶ = 27238376323 is a prime.

It is not a weakly prime, because it can be changed into another prime (27238370387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13619188193 + 13619188194.

It is an arithmetic number, because the mean of its divisors is an integer number (13619188194).

Almost surely, 2^27238376387 is an apocalyptic number.

27238376387 is a deficient number, since it is larger than the sum of its proper divisors (1).

27238376387 is an equidigital number, since it uses as much as digits as its factorization.

27238376387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14224896, while the sum is 56.

The spelling of 27238376387 in words is "twenty-seven billion, two hundred thirty-eight million, three hundred seventy-six thousand, three hundred eighty-seven".