11781926756 has 12 divisors (see below), whose sum is σ = 20621689200. Its totient is φ = 5890015560.

The previous prime is 11781926749. The next prime is 11781926777. The reversal of 11781926756 is 65762918711.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 11781926698 and 11781926707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208610 + ... + 259001.

It is an arithmetic number, because the mean of its divisors is an integer number (1718474100).

Almost surely, 2^11781926756 is an apocalyptic number.

It is an amenable number.

11781926756 is a deficient number, since it is larger than the sum of its proper divisors (8839762444).

11781926756 is a wasteful number, since it uses less digits than its factorization.

11781926756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473914 (or 473912 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 53.

The spelling of 11781926756 in words is "eleven billion, seven hundred eighty-one million, nine hundred twenty-six thousand, seven hundred fifty-six".