11922088789 has 4 divisors (see below), whose sum is σ = 12839172556. Its totient is φ = 11005005024.

The previous prime is 11922088781. The next prime is 11922088807. The reversal of 11922088789 is 98788022911.

11922088789 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 an emirpimes, since its reverse is a distinct semiprime: 98788022911 = 631 ⋅156557881.

It can be written as a sum of positive squares in 2 ways, for example, as 3204692100 + 8717396689 = 56610^2 + 93367^2 .

It is not a de Polignac number, because 11922088789 - 2³ = 11922088781 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 (11922088781) 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, 458541864 + ... + 458541889.

It is an arithmetic number, because the mean of its divisors is an integer number (3209793139).

Almost surely, 2^11922088789 is an apocalyptic number.

It is an amenable number.

11922088789 is a deficient number, since it is larger than the sum of its proper divisors (917083767).

11922088789 is an equidigital number, since it uses as much as digits as its factorization.

11922088789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917083766.

The product of its (nonzero) digits is 1161216, while the sum is 55.

The spelling of 11922088789 in words is "eleven billion, nine hundred twenty-two million, eighty-eight thousand, seven hundred eighty-nine".