6834779989 has 16 divisors (see below), whose sum is σ = 7057290240. Its totient is φ = 6616209600.

The previous prime is 6834779969. The next prime is 6834779993. The reversal of 6834779989 is 9899774386.

It is a cyclic number.

It is not a de Polignac number, because 6834779989 - 2⁵ = 6834779957 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 (6834779929) 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 15 ways as a sum of consecutive naturals, for example, 1641292 + ... + 1645450.

It is an arithmetic number, because the mean of its divisors is an integer number (441080640).

Almost surely, 2^6834779989 is an apocalyptic number.

It is an amenable number.

6834779989 is a deficient number, since it is larger than the sum of its proper divisors (222510251).

6834779989 is a wasteful number, since it uses less digits than its factorization.

6834779989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4620.

The product of its digits is 164602368, while the sum is 70.

The square root of 6834779989 is about 82672.7282058600. The cubic root of 6834779989 is about 1897.7609810666.

The spelling of 6834779989 in words is "six billion, eight hundred thirty-four million, seven hundred seventy-nine thousand, nine hundred eighty-nine".