27238660723 has 2 divisors, whose sum is σ = 27238660724. Its totient is φ = 27238660722.

The previous prime is 27238660711. The next prime is 27238660733. The reversal of 27238660723 is 32706683272.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27238660723 is a prime.

It is not a weakly prime, because it can be changed into another prime (27238660733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13619330361 + 13619330362.

It is an arithmetic number, because the mean of its divisors is an integer number (13619330362).

Almost surely, 2^27238660723 is an apocalyptic number.

27238660723 is a deficient number, since it is larger than the sum of its proper divisors (1).

27238660723 is an equidigital number, since it uses as much as digits as its factorization.

27238660723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 46.

The spelling of 27238660723 in words is "twenty-seven billion, two hundred thirty-eight million, six hundred sixty thousand, seven hundred twenty-three".