1178491965800 has 48 divisors (see below), whose sum is σ = 2745861262560. Its totient is φ = 470387334080.

The previous prime is 1178491965793. The next prime is 1178491965811. The reversal of 1178491965800 is 85691948711.

It is a self number, because there is not a number n which added to its sum of digits gives 1178491965800.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6215444 + ... + 6402243.

It is an arithmetic number, because the mean of its divisors is an integer number (57205442970).

Almost surely, 2^{1178491965800} is an apocalyptic number.

1178491965800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1178491965800 is an abundant number, since it is smaller than the sum of its proper divisors (1567369296760).

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

1178491965800 is a wasteful number, since it uses less digits than its factorization.

1178491965800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12618170 (or 12618161 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 59.

The spelling of 1178491965800 in words is "one trillion, one hundred seventy-eight billion, four hundred ninety-one million, nine hundred sixty-five thousand, eight hundred".