7958682489 has 4 divisors (see below), whose sum is σ = 10611576656. Its totient is φ = 5305788324.

The previous prime is 7958682469. The next prime is 7958682497. The reversal of 7958682489 is 9842868597.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9842868597 = 3 ⋅3280956199.

It is not a de Polignac number, because 7958682489 - 2⁸ = 7958682233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7958682439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1326447079 + ... + 1326447084.

It is an arithmetic number, because the mean of its divisors is an integer number (2652894164).

Almost surely, 2^7958682489 is an apocalyptic number.

It is an amenable number.

7958682489 is a deficient number, since it is larger than the sum of its proper divisors (2652894167).

7958682489 is a wasteful number, since it uses less digits than its factorization.

7958682489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652894166.

The product of its digits is 69672960, while the sum is 66.

The square root of 7958682489 is about 89211.4481947244. The cubic root of 7958682489 is about 1996.5509294587.

The spelling of 7958682489 in words is "seven billion, nine hundred fifty-eight million, six hundred eighty-two thousand, four hundred eighty-nine".