11291568829 has 4 divisors (see below), whose sum is σ = 11434500160. Its totient is φ = 11148637500.

The previous prime is 11291568803. The next prime is 11291568853. The reversal of 11291568829 is 92886519211.

It is a happy number.

11291568829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 92886519211 = 19 ⋅4888764169.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11291568829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11291568889) 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, 71465547 + ... + 71465704.

It is an arithmetic number, because the mean of its divisors is an integer number (2858625040).

Almost surely, 2^11291568829 is an apocalyptic number.

It is an amenable number.

11291568829 is a deficient number, since it is larger than the sum of its proper divisors (142931331).

11291568829 is an equidigital number, since it uses as much as digits as its factorization.

11291568829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142931330.

The product of its digits is 622080, while the sum is 52.

The spelling of 11291568829 in words is "eleven billion, two hundred ninety-one million, five hundred sixty-eight thousand, eight hundred twenty-nine".