12698028173 has 4 divisors (see below), whose sum is σ = 12698393568. Its totient is φ = 12697662780.

The previous prime is 12698028067. The next prime is 12698028221. The reversal of 12698028173 is 37182089621.

It is a happy number.

12698028173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 12698028173 - 2⁸ = 12698027917 is a prime.

It is a super-2 number, since 2×12698028173² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12698021173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124361 + ... + 202142.

It is an arithmetic number, because the mean of its divisors is an integer number (3174598392).

Almost surely, 2^12698028173 is an apocalyptic number.

It is an amenable number.

12698028173 is a deficient number, since it is larger than the sum of its proper divisors (365395).

12698028173 is an equidigital number, since it uses as much as digits as its factorization.

12698028173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365394.

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

The spelling of 12698028173 in words is "twelve billion, six hundred ninety-eight million, twenty-eight thousand, one hundred seventy-three".