12173856082 has 4 divisors (see below), whose sum is σ = 18260784126. Its totient is φ = 6086928040.

The previous prime is 12173856067. The next prime is 12173856131. The reversal of 12173856082 is 28065837121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6538501321 + 5635354761 = 80861^2 + 75069^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3043464019 + ... + 3043464022.

Almost surely, 2^12173856082 is an apocalyptic number.

12173856082 is a deficient number, since it is larger than the sum of its proper divisors (6086928044).

12173856082 is an equidigital number, since it uses as much as digits as its factorization.

12173856082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6086928043.

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 12173856082 in words is "twelve billion, one hundred seventy-three million, eight hundred fifty-six thousand, eighty-two".