5611217789 has 4 divisors (see below), whose sum is σ = 5611803456. Its totient is φ = 5610632124.

The previous prime is 5611217741. The next prime is 5611217809. The reversal of 5611217789 is 9877121165.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5611217789 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 (5611217089) 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 in 3 ways as a sum of consecutive naturals, for example, 278219 + ... + 297704.

It is an arithmetic number, because the mean of its divisors is an integer number (1402950864).

Almost surely, 2^5611217789 is an apocalyptic number.

It is an amenable number.

5611217789 is a deficient number, since it is larger than the sum of its proper divisors (585667).

5611217789 is an equidigital number, since it uses as much as digits as its factorization.

5611217789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585666.

The product of its digits is 211680, while the sum is 47.

The square root of 5611217789 is about 74908.0622429922. The cubic root of 5611217789 is about 1776.9929649585.

The spelling of 5611217789 in words is "five billion, six hundred eleven million, two hundred seventeen thousand, seven hundred eighty-nine".