11643575228 has 6 divisors (see below), whose sum is σ = 20376256656. Its totient is φ = 5821787612.

The previous prime is 11643575189. The next prime is 11643575233. The reversal of 11643575228 is 82257534611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1455446900 + ... + 1455446907.

It is an arithmetic number, because the mean of its divisors is an integer number (3396042776).

Almost surely, 2^11643575228 is an apocalyptic number.

It is an amenable number.

11643575228 is a deficient number, since it is larger than the sum of its proper divisors (8732681428).

11643575228 is a wasteful number, since it uses less digits than its factorization.

11643575228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910893811 (or 2910893809 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The spelling of 11643575228 in words is "eleven billion, six hundred forty-three million, five hundred seventy-five thousand, two hundred twenty-eight".