11728664992 has 96 divisors (see below), whose sum is σ = 26062041600. Its totient is φ = 5147443200.

The previous prime is 11728664971. The next prime is 11728665031. The reversal of 11728664992 is 29946682711.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6207984 + ... + 6209872.

It is an arithmetic number, because the mean of its divisors is an integer number (271479600).

Almost surely, 2^11728664992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11728664992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13031020800).

11728664992 is an abundant number, since it is smaller than the sum of its proper divisors (14333376608).

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

11728664992 is a wasteful number, since it uses less digits than its factorization.

11728664992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510 (or 2502 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 55.

The spelling of 11728664992 in words is "eleven billion, seven hundred twenty-eight million, six hundred sixty-four thousand, nine hundred ninety-two".