12752291117 has 2 divisors, whose sum is σ = 12752291118. Its totient is φ = 12752291116.

The previous prime is 12752291113. The next prime is 12752291119. The reversal of 12752291117 is 71119225721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7761433801 + 4990857316 = 88099^2 + 70646^2 .

It is a cyclic number.

It is not a de Polignac number, because 12752291117 - 2² = 12752291113 is a prime.

Together with 12752291119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12752291113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6376145558 + 6376145559.

It is an arithmetic number, because the mean of its divisors is an integer number (6376145559).

Almost surely, 2^12752291117 is an apocalyptic number.

It is an amenable number.

12752291117 is a deficient number, since it is larger than the sum of its proper divisors (1).

12752291117 is an equidigital number, since it uses as much as digits as its factorization.

12752291117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17640, while the sum is 38.

The spelling of 12752291117 in words is "twelve billion, seven hundred fifty-two million, two hundred ninety-one thousand, one hundred seventeen".