6978934489 has 8 divisors (see below), whose sum is σ = 7217852672. Its totient is φ = 6740878320.

The previous prime is 6978934447. The next prime is 6978934531. The reversal of 6978934489 is 9844398796.

It is an interprime number because it is at equal distance from previous prime (6978934447) and next prime (6978934531).

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

It is a cyclic number.

It is not a de Polignac number, because 6978934489 - 2²¹ = 6976837337 is a prime.

It is a super-2 number, since 2×6978934489² = 97411053203507382242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6978934409) 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, 199014 + ... + 231439.

It is an arithmetic number, because the mean of its divisors is an integer number (902231584).

Almost surely, 2^6978934489 is an apocalyptic number.

It is an amenable number.

6978934489 is a deficient number, since it is larger than the sum of its proper divisors (238918183).

6978934489 is a wasteful number, since it uses less digits than its factorization.

6978934489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431007.

The product of its digits is 94058496, while the sum is 67.

The square root of 6978934489 is about 83540.0172911162. The cubic root of 6978934489 is about 1911.0103559547.

The spelling of 6978934489 in words is "six billion, nine hundred seventy-eight million, nine hundred thirty-four thousand, four hundred eighty-nine".