27431352719 has 2 divisors, whose sum is σ = 27431352720. Its totient is φ = 27431352718.

The previous prime is 27431352713. The next prime is 27431352737. The reversal of 27431352719 is 91725313472.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27431352719 is a prime.

It is a super-2 number, since 2×27431352719² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27431352719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27431352713) 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, 13715676359 + 13715676360.

It is an arithmetic number, because the mean of its divisors is an integer number (13715676360).

Almost surely, 2^27431352719 is an apocalyptic number.

27431352719 is a deficient number, since it is larger than the sum of its proper divisors (1).

27431352719 is an equidigital number, since it uses as much as digits as its factorization.

27431352719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 44.

The spelling of 27431352719 in words is "twenty-seven billion, four hundred thirty-one million, three hundred fifty-two thousand, seven hundred nineteen".