6997528289 has 16 divisors (see below), whose sum is σ = 7280824320. Its totient is φ = 6718000080.

The previous prime is 6997528283. The next prime is 6997528387. The reversal of 6997528289 is 9828257996.

It is not a de Polignac number, because 6997528289 - 2²⁰ = 6996479713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6997528283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3534902 + ... + 3536880.

It is an arithmetic number, because the mean of its divisors is an integer number (455051520).

Almost surely, 2^6997528289 is an apocalyptic number.

It is an amenable number.

6997528289 is a deficient number, since it is larger than the sum of its proper divisors (283296031).

6997528289 is a wasteful number, since it uses less digits than its factorization.

6997528289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860.

The product of its digits is 39191040, while the sum is 65.

The square root of 6997528289 is about 83651.2300507291. The cubic root of 6997528289 is about 1912.7060032643.

The spelling of 6997528289 in words is "six billion, nine hundred ninety-seven million, five hundred twenty-eight thousand, two hundred eighty-nine".