12355692173 has 4 divisors (see below), whose sum is σ = 13478936928. Its totient is φ = 11232447420.

The previous prime is 12355692131. The next prime is 12355692187. The reversal of 12355692173 is 37129655321.

12355692173 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, and also an emirpimes, since its reverse is a distinct semiprime: 37129655321 = 11 ⋅3375423211.

It is a cyclic number.

It is not a de Polignac number, because 12355692173 - 2¹⁴ = 12355675789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12355695173) 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, 561622361 + ... + 561622382.

It is an arithmetic number, because the mean of its divisors is an integer number (3369734232).

Almost surely, 2^12355692173 is an apocalyptic number.

It is an amenable number.

12355692173 is a deficient number, since it is larger than the sum of its proper divisors (1123244755).

12355692173 is a wasteful number, since it uses less digits than its factorization.

12355692173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123244754.

The product of its digits is 340200, while the sum is 44.

The spelling of 12355692173 in words is "twelve billion, three hundred fifty-five million, six hundred ninety-two thousand, one hundred seventy-three".