11643942338 has 16 divisors (see below), whose sum is σ = 20385748224. Its totient is φ = 4884084960.

The previous prime is 11643942301. The next prime is 11643942341. The reversal of 11643942338 is 83324934611.

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, 8847323 + ... + 8848638.

It is an arithmetic number, because the mean of its divisors is an integer number (1274109264).

Almost surely, 2^11643942338 is an apocalyptic number.

11643942338 is a deficient number, since it is larger than the sum of its proper divisors (8741805886).

11643942338 is a wasteful number, since it uses less digits than its factorization.

11643942338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17696017.

The product of its digits is 373248, while the sum is 44.

The spelling of 11643942338 in words is "eleven billion, six hundred forty-three million, nine hundred forty-two thousand, three hundred thirty-eight".