11682717978 has 8 divisors (see below), whose sum is σ = 23365435968. Its totient is φ = 3894239324.

The previous prime is 11682717953. The next prime is 11682717983. The reversal of 11682717978 is 87971728611.

It is a sphenic number, since it is the product of 3 distinct primes.

11682717978 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 973559826 + ... + 973559837.

It is an arithmetic number, because the mean of its divisors is an integer number (2920679496).

Almost surely, 2^11682717978 is an apocalyptic number.

11682717978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11682717978 is a wasteful number, since it uses less digits than its factorization.

11682717978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947119668.

The product of its digits is 2370816, while the sum is 57.

The spelling of 11682717978 in words is "eleven billion, six hundred eighty-two million, seven hundred seventeen thousand, nine hundred seventy-eight".