1191282768 has 80 divisors (see below), whose sum is σ = 3682472640. Its totient is φ = 366546816.

The previous prime is 1191282761. The next prime is 1191282773. The reversal of 1191282768 is 8672821911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1191282761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100446 + ... + 111677.

It is an arithmetic number, because the mean of its divisors is an integer number (46030908).

Almost surely, 2^1191282768 is an apocalyptic number.

1191282768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1191282768 is an abundant number, since it is smaller than the sum of its proper divisors (2491189872).

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

1191282768 is a wasteful number, since it uses less digits than its factorization.

1191282768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212153 (or 212141 counting only the distinct ones).

The product of its digits is 96768, while the sum is 45.

The square root of 1191282768 is about 34514.9644067613. The cubic root of 1191282768 is about 1060.0791349488.

The spelling of 1191282768 in words is "one billion, one hundred ninety-one million, two hundred eighty-two thousand, seven hundred sixty-eight".