27251156123 has 2 divisors, whose sum is σ = 27251156124. Its totient is φ = 27251156122.

The previous prime is 27251156113. The next prime is 27251156147. The reversal of 27251156123 is 32165115272.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27251156123 - 2¹⁸ = 27250893979 is a prime.

It is a super-2 number, since 2×27251156123² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (27251156113) 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, 13625578061 + 13625578062.

It is an arithmetic number, because the mean of its divisors is an integer number (13625578062).

Almost surely, 2^27251156123 is an apocalyptic number.

27251156123 is a deficient number, since it is larger than the sum of its proper divisors (1).

27251156123 is an equidigital number, since it uses as much as digits as its factorization.

27251156123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 35.

The spelling of 27251156123 in words is "twenty-seven billion, two hundred fifty-one million, one hundred fifty-six thousand, one hundred twenty-three".