11903817788 has 6 divisors (see below), whose sum is σ = 20831681136. Its totient is φ = 5951908892.

The previous prime is 11903817763. The next prime is 11903817811. The reversal of 11903817788 is 88771830911.

It is a happy number.

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, 1487977220 + ... + 1487977227.

It is an arithmetic number, because the mean of its divisors is an integer number (3471946856).

Almost surely, 2^11903817788 is an apocalyptic number.

It is an amenable number.

11903817788 is a deficient number, since it is larger than the sum of its proper divisors (8927863348).

11903817788 is a wasteful number, since it uses less digits than its factorization.

11903817788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975954451 (or 2975954449 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 53.

The spelling of 11903817788 in words is "eleven billion, nine hundred three million, eight hundred seventeen thousand, seven hundred eighty-eight".