11778660767 has 16 divisors (see below), whose sum is σ = 11996424000. Its totient is φ = 11563140864.

The previous prime is 11778660737. The next prime is 11778660787. The reversal of 11778660767 is 76706687711.

11778660767 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11778660767 - 2²² = 11774466463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11778660727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8929334 + ... + 8930652.

It is an arithmetic number, because the mean of its divisors is an integer number (749776500).

Almost surely, 2^11778660767 is an apocalyptic number.

11778660767 is a deficient number, since it is larger than the sum of its proper divisors (217763233).

11778660767 is a wasteful number, since it uses less digits than its factorization.

11778660767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050.

The product of its (nonzero) digits is 4148928, while the sum is 56.

The spelling of 11778660767 in words is "eleven billion, seven hundred seventy-eight million, six hundred sixty thousand, seven hundred sixty-seven".