12156273173 has 8 divisors (see below), whose sum is σ = 13311815616. Its totient is φ = 11009135200.

The previous prime is 12156273139. The next prime is 12156273193. The reversal of 12156273173 is 37137265121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12156273173 - 2⁶ = 12156273109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12156273193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2098088 + ... + 2103873.

It is an arithmetic number, because the mean of its divisors is an integer number (1663976952).

Almost surely, 2^12156273173 is an apocalyptic number.

It is an amenable number.

12156273173 is a deficient number, since it is larger than the sum of its proper divisors (1155542443).

12156273173 is a wasteful number, since it uses less digits than its factorization.

12156273173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202235.

The product of its digits is 52920, while the sum is 38.

The spelling of 12156273173 in words is "twelve billion, one hundred fifty-six million, two hundred seventy-three thousand, one hundred seventy-three".