6789955559 has 4 divisors (see below), whose sum is σ = 6843419904. Its totient is φ = 6736491216.

The previous prime is 6789955537. The next prime is 6789955561. The reversal of 6789955559 is 9555599876.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6789955559 - 2⁸ = 6789955303 is a prime.

It is a super-2 number, since 2×6789955559² = 92206992986390004962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6789955589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26731982 + ... + 26732235.

It is an arithmetic number, because the mean of its divisors is an integer number (1710854976).

Almost surely, 2^6789955559 is an apocalyptic number.

6789955559 is a deficient number, since it is larger than the sum of its proper divisors (53464345).

6789955559 is a wasteful number, since it uses less digits than its factorization.

6789955559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53464344.

The product of its digits is 153090000, while the sum is 68.

The square root of 6789955559 is about 82401.1866358732. The cubic root of 6789955559 is about 1893.6031931362.

The spelling of 6789955559 in words is "six billion, seven hundred eighty-nine million, nine hundred fifty-five thousand, five hundred fifty-nine".