12009178247698 has 8 divisors (see below), whose sum is σ = 18013814359740. Its totient is φ = 6004573461120.

The previous prime is 12009178247609. The next prime is 12009178247747. The reversal of 12009178247698 is 89674287190021.

It can be written as a sum of positive squares in 2 ways, for example, as 11133319975569 + 875858272129 = 3336663^2 + 935873^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6848263 + ... + 8421226.

Almost surely, 2^{12009178247698} is an apocalyptic number.

12009178247698 is a deficient number, since it is larger than the sum of its proper divisors (6004636112042).

12009178247698 is a wasteful number, since it uses less digits than its factorization.

12009178247698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15662732.

The product of its (nonzero) digits is 24385536, while the sum is 64.

The spelling of 12009178247698 in words is "twelve trillion, nine billion, one hundred seventy-eight million, two hundred forty-seven thousand, six hundred ninety-eight".