12177887227 has 16 divisors (see below), whose sum is σ = 13995417600. Its totient is φ = 10479702240.

The previous prime is 12177887179. The next prime is 12177887231. The reversal of 12177887227 is 72278877121.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12177887227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12177887297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244533 + ... + 290089.

It is an arithmetic number, because the mean of its divisors is an integer number (874713600).

Almost surely, 2^12177887227 is an apocalyptic number.

12177887227 is a deficient number, since it is larger than the sum of its proper divisors (1817530373).

12177887227 is a wasteful number, since it uses less digits than its factorization.

12177887227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46866.

The product of its digits is 1229312, while the sum is 52.

The spelling of 12177887227 in words is "twelve billion, one hundred seventy-seven million, eight hundred eighty-seven thousand, two hundred twenty-seven".