12688293071 has 2 divisors, whose sum is σ = 12688293072. Its totient is φ = 12688293070.

The previous prime is 12688293067. The next prime is 12688293143. The reversal of 12688293071 is 17039288621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12688293071 - 2² = 12688293067 is a prime.

It is a super-2 number, since 2×12688293071² (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 (12688290071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6344146535 + 6344146536.

It is an arithmetic number, because the mean of its divisors is an integer number (6344146536).

Almost surely, 2^12688293071 is an apocalyptic number.

12688293071 is a deficient number, since it is larger than the sum of its proper divisors (1).

12688293071 is an equidigital number, since it uses as much as digits as its factorization.

12688293071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 47.

The spelling of 12688293071 in words is "twelve billion, six hundred eighty-eight million, two hundred ninety-three thousand, seventy-one".