1191688883 has 16 divisors (see below), whose sum is σ = 1496600064. Its totient is φ = 921802560.

The previous prime is 1191688871. The next prime is 1191688931. The reversal of 1191688883 is 3888861911.

It is not a de Polignac number, because 1191688883 - 2¹⁰ = 1191687859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1191688843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45935 + ... + 67032.

It is an arithmetic number, because the mean of its divisors is an integer number (93537504).

Almost surely, 2^1191688883 is an apocalyptic number.

1191688883 is a deficient number, since it is larger than the sum of its proper divisors (304911181).

1191688883 is a wasteful number, since it uses less digits than its factorization.

1191688883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113122.

The product of its digits is 663552, while the sum is 53.

The square root of 1191688883 is about 34520.8470782511. The cubic root of 1191688883 is about 1060.1995835770.

The spelling of 1191688883 in words is "one billion, one hundred ninety-one million, six hundred eighty-eight thousand, eight hundred eighty-three".