6221115789 has 8 divisors (see below), whose sum is σ = 9479795520. Its totient is φ = 3554923296.

The previous prime is 6221115781. The next prime is 6221115799. The reversal of 6221115789 is 9875111226.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6221115789 - 2³ = 6221115781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6221115789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6221115781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148121784 + ... + 148121825.

It is an arithmetic number, because the mean of its divisors is an integer number (1184974440).

Almost surely, 2^6221115789 is an apocalyptic number.

It is an amenable number.

6221115789 is a deficient number, since it is larger than the sum of its proper divisors (3258679731).

6221115789 is a wasteful number, since it uses less digits than its factorization.

6221115789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296243619.

The product of its digits is 60480, while the sum is 42.

The square root of 6221115789 is about 78874.0501622682. The cubic root of 6221115789 is about 1839.1737575998.

The spelling of 6221115789 in words is "six billion, two hundred twenty-one million, one hundred fifteen thousand, seven hundred eighty-nine".