7997732289 has 16 divisors (see below), whose sum is σ = 11850451200. Its totient is φ = 5330940048.

The previous prime is 7997732269. The next prime is 7997732311. The reversal of 7997732289 is 9822377997.

It is not a de Polignac number, because 7997732289 - 2⁸ = 7997732033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7997732269) 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, 169912 + ... + 211814.

It is an arithmetic number, because the mean of its divisors is an integer number (740653200).

Almost surely, 2^7997732289 is an apocalyptic number.

It is an amenable number.

7997732289 is a deficient number, since it is larger than the sum of its proper divisors (3852718911).

7997732289 is a wasteful number, since it uses less digits than its factorization.

7997732289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48981 (or 48975 counting only the distinct ones).

The product of its digits is 24004512, while the sum is 63.

The square root of 7997732289 is about 89430.0413116308. The cubic root of 7997732289 is about 1999.8110062246.

The spelling of 7997732289 in words is "seven billion, nine hundred ninety-seven million, seven hundred thirty-two thousand, two hundred eighty-nine".