1136768889 has 4 divisors (see below), whose sum is σ = 1515691856. Its totient is φ = 757845924.

The previous prime is 1136768851. The next prime is 1136768891. The reversal of 1136768889 is 9888676311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1136768889 - 2⁷ = 1136768761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1136768819) 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 3 ways as a sum of consecutive naturals, for example, 189461479 + ... + 189461484.

It is an arithmetic number, because the mean of its divisors is an integer number (378922964).

Almost surely, 2^1136768889 is an apocalyptic number.

It is an amenable number.

1136768889 is a deficient number, since it is larger than the sum of its proper divisors (378922967).

1136768889 is an equidigital number, since it uses as much as digits as its factorization.

1136768889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378922966.

The product of its digits is 3483648, while the sum is 57.

The square root of 1136768889 is about 33716.0034553326. The cubic root of 1136768889 is about 1043.6560454039.

The spelling of 1136768889 in words is "one billion, one hundred thirty-six million, seven hundred sixty-eight thousand, eight hundred eighty-nine".