11778955684 has 24 divisors (see below), whose sum is σ = 22641474240. Its totient is φ = 5336917344.

The previous prime is 11778955681. The next prime is 11778955687. The reversal of 11778955684 is 48655987711.

It is an interprime number because it is at equal distance from previous prime (11778955681) and next prime (11778955687).

It is not an unprimeable number, because it can be changed into a prime (11778955681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3367519 + ... + 3371014.

It is an arithmetic number, because the mean of its divisors is an integer number (943394760).

Almost surely, 2^11778955684 is an apocalyptic number.

It is an amenable number.

11778955684 is a deficient number, since it is larger than the sum of its proper divisors (10862518556).

11778955684 is a wasteful number, since it uses less digits than its factorization.

11778955684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6738579 (or 6738577 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 61.

The spelling of 11778955684 in words is "eleven billion, seven hundred seventy-eight million, nine hundred fifty-five thousand, six hundred eighty-four".