27193607251 has 2 divisors, whose sum is σ = 27193607252. Its totient is φ = 27193607250.

The previous prime is 27193607153. The next prime is 27193607267. The reversal of 27193607251 is 15270639172.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27193607251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27193607198 and 27193607207.

It is not a weakly prime, because it can be changed into another prime (27193607281) 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, 13596803625 + 13596803626.

It is an arithmetic number, because the mean of its divisors is an integer number (13596803626).

Almost surely, 2^27193607251 is an apocalyptic number.

27193607251 is a deficient number, since it is larger than the sum of its proper divisors (1).

27193607251 is an equidigital number, since it uses as much as digits as its factorization.

27193607251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 43.

The spelling of 27193607251 in words is "twenty-seven billion, one hundred ninety-three million, six hundred seven thousand, two hundred fifty-one".