12115675457 has 2 divisors, whose sum is σ = 12115675458. Its totient is φ = 12115675456.

The previous prime is 12115675423. The next prime is 12115675501. The reversal of 12115675457 is 75457651121.

It is an a-pointer prime, because the next prime (12115675501) can be obtained adding 12115675457 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10096431361 + 2019244096 = 100481^2 + 44936^2 .

It is an emirp because it is prime and its reverse (75457651121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12115675457 - 2⁶ = 12115675393 is a prime.

It is not a weakly prime, because it can be changed into another prime (12115675757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6057837728 + 6057837729.

It is an arithmetic number, because the mean of its divisors is an integer number (6057837729).

Almost surely, 2^12115675457 is an apocalyptic number.

It is an amenable number.

12115675457 is a deficient number, since it is larger than the sum of its proper divisors (1).

12115675457 is an equidigital number, since it uses as much as digits as its factorization.

12115675457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 294000, while the sum is 44.

The spelling of 12115675457 in words is "twelve billion, one hundred fifteen million, six hundred seventy-five thousand, four hundred fifty-seven".