1181796768 has 72 divisors (see below), whose sum is σ = 3364216128. Its totient is φ = 393524352.

The previous prime is 1181796697. The next prime is 1181796779. The reversal of 1181796768 is 8676971811.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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, 425721 + ... + 428487.

It is an arithmetic number, because the mean of its divisors is an integer number (46725224).

Almost surely, 2^1181796768 is an apocalyptic number.

1181796768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1181796768 is an abundant number, since it is smaller than the sum of its proper divisors (2182419360).

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

1181796768 is a wasteful number, since it uses less digits than its factorization.

1181796768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4266 (or 4255 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 54.

The square root of 1181796768 is about 34377.2710958854. The cubic root of 1181796768 is about 1057.2578846485.

The spelling of 1181796768 in words is "one billion, one hundred eighty-one million, seven hundred ninety-six thousand, seven hundred sixty-eight".