11691751328 has 24 divisors (see below), whose sum is σ = 23233264992. Its totient is φ = 5791239616.

The previous prime is 11691751319. The next prime is 11691751333. The reversal of 11691751328 is 82315719611.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1703900 + ... + 1710747.

It is an arithmetic number, because the mean of its divisors is an integer number (968052708).

Almost surely, 2^11691751328 is an apocalyptic number.

It is an amenable number.

11691751328 is a deficient number, since it is larger than the sum of its proper divisors (11541513664).

11691751328 is a wasteful number, since it uses less digits than its factorization.

11691751328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3414764 (or 3414756 counting only the distinct ones).

The product of its digits is 90720, while the sum is 44.

The spelling of 11691751328 in words is "eleven billion, six hundred ninety-one million, seven hundred fifty-one thousand, three hundred twenty-eight".