11193634789 has 2 divisors, whose sum is σ = 11193634790. Its totient is φ = 11193634788.

The previous prime is 11193634769. The next prime is 11193634831. The reversal of 11193634789 is 98743639111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10170722500 + 1022912289 = 100850^2 + 31983^2 .

It is a cyclic number.

It is not a de Polignac number, because 11193634789 - 2¹³ = 11193626597 is a prime.

It is a super-3 number, since 3×11193634789³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11193634759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5596817394 + 5596817395.

It is an arithmetic number, because the mean of its divisors is an integer number (5596817395).

Almost surely, 2^11193634789 is an apocalyptic number.

It is an amenable number.

11193634789 is a deficient number, since it is larger than the sum of its proper divisors (1).

11193634789 is an equidigital number, since it uses as much as digits as its factorization.

11193634789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 52.

The spelling of 11193634789 in words is "eleven billion, one hundred ninety-three million, six hundred thirty-four thousand, seven hundred eighty-nine".