12759780727 has 2 divisors, whose sum is σ = 12759780728. Its totient is φ = 12759780726.

The previous prime is 12759780653. The next prime is 12759780749. The reversal of 12759780727 is 72708795721.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12759780727 is a prime.

It is a super-2 number, since 2×12759780727² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12759789727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6379890363 + 6379890364.

It is an arithmetic number, because the mean of its divisors is an integer number (6379890364).

Almost surely, 2^12759780727 is an apocalyptic number.

12759780727 is a deficient number, since it is larger than the sum of its proper divisors (1).

12759780727 is an equidigital number, since it uses as much as digits as its factorization.

12759780727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3457440, while the sum is 55.

The spelling of 12759780727 in words is "twelve billion, seven hundred fifty-nine million, seven hundred eighty thousand, seven hundred twenty-seven".