12688407073 has 4 divisors (see below), whose sum is σ = 12903464880. Its totient is φ = 12473349268.

The previous prime is 12688407049. The next prime is 12688407097. The reversal of 12688407073 is 37070488621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37070488621 = 2269 ⋅16337809.

It is an interprime number because it is at equal distance from previous prime (12688407049) and next prime (12688407097).

It is a cyclic number.

It is not a de Polignac number, because 12688407073 - 2⁵ = 12688407041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12688407023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107528815 + ... + 107528932.

It is an arithmetic number, because the mean of its divisors is an integer number (3225866220).

Almost surely, 2^12688407073 is an apocalyptic number.

It is an amenable number.

12688407073 is a deficient number, since it is larger than the sum of its proper divisors (215057807).

12688407073 is an equidigital number, since it uses as much as digits as its factorization.

12688407073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215057806.

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 12688407073 in words is "twelve billion, six hundred eighty-eight million, four hundred seven thousand, seventy-three".