27345389238743 has 2 divisors, whose sum is σ = 27345389238744. Its totient is φ = 27345389238742.

The previous prime is 27345389238733. The next prime is 27345389238751. The reversal of 27345389238743 is 34783298354372.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27345389238743 - 2⁶ = 27345389238679 is a prime.

It is a super-2 number, since 2×27345389238743² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27345389238733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13672694619371 + 13672694619372.

It is an arithmetic number, because the mean of its divisors is an integer number (13672694619372).

Almost surely, 2^{27345389238743} is an apocalyptic number.

27345389238743 is a deficient number, since it is larger than the sum of its proper divisors (1).

27345389238743 is an equidigital number, since it uses as much as digits as its factorization.

27345389238743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 731566080, while the sum is 68.

The spelling of 27345389238743 in words is "twenty-seven trillion, three hundred forty-five billion, three hundred eighty-nine million, two hundred thirty-eight thousand, seven hundred forty-three".