12177942906 has 16 divisors (see below), whose sum is σ = 24358174848. Its totient is φ = 4058932800.

The previous prime is 12177942883. The next prime is 12177942913. The reversal of 12177942906 is 60924977121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21855 + ... + 157586.

It is an arithmetic number, because the mean of its divisors is an integer number (1522385928).

Almost surely, 2^12177942906 is an apocalyptic number.

12177942906 is an abundant number, since it is smaller than the sum of its proper divisors (12180231942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12177942906 is a wasteful number, since it uses less digits than its factorization.

12177942906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190757.

The product of its (nonzero) digits is 381024, while the sum is 48.

The spelling of 12177942906 in words is "twelve billion, one hundred seventy-seven million, nine hundred forty-two thousand, nine hundred six".