12171738082 has 24 divisors (see below), whose sum is σ = 21249469584. Its totient is φ = 5213750472.

The previous prime is 12171738071. The next prime is 12171738119. The reversal of 12171738082 is 28083717121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163473 + ... + 225979.

It is an arithmetic number, because the mean of its divisors is an integer number (885394566).

Almost surely, 2^12171738082 is an apocalyptic number.

12171738082 is a deficient number, since it is larger than the sum of its proper divisors (9077731502).

12171738082 is a wasteful number, since it uses less digits than its factorization.

12171738082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64510 (or 64503 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 40.

The spelling of 12171738082 in words is "twelve billion, one hundred seventy-one million, seven hundred thirty-eight thousand, eighty-two".