1178884394868 has 24 divisors (see below), whose sum is σ = 2750752805472. Its totient is φ = 392958243424.

The previous prime is 1178884394833. The next prime is 1178884394887. The reversal of 1178884394868 is 8684934888711.

It is a self number, because there is not a number n which added to its sum of digits gives 1178884394868.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1470646 + ... + 2126162.

It is an arithmetic number, because the mean of its divisors is an integer number (114614700228).

Almost surely, 2^{1178884394868} is an apocalyptic number.

It is an amenable number.

1178884394868 is an abundant number, since it is smaller than the sum of its proper divisors (1571868410604).

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

1178884394868 is a wasteful number, since it uses less digits than its factorization.

1178884394868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805391 (or 805389 counting only the distinct ones).

The product of its digits is 594542592, while the sum is 75.

The spelling of 1178884394868 in words is "one trillion, one hundred seventy-eight billion, eight hundred eighty-four million, three hundred ninety-four thousand, eight hundred sixty-eight".