7989459137 has 16 divisors (see below), whose sum is σ = 8934577344. Its totient is φ = 7081056000.

The previous prime is 7989459109. The next prime is 7989459151. The reversal of 7989459137 is 7319549897.

It is a cyclic number.

It is not a de Polignac number, because 7989459137 - 2¹² = 7989455041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7989459137.

It is not an unprimeable number, because it can be changed into a prime (7989459157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741962 + ... + 752652.

It is an arithmetic number, because the mean of its divisors is an integer number (558411084).

Almost surely, 2^7989459137 is an apocalyptic number.

It is an amenable number.

7989459137 is a deficient number, since it is larger than the sum of its proper divisors (945118207).

7989459137 is a wasteful number, since it uses less digits than its factorization.

7989459137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12400.

The product of its digits is 17146080, while the sum is 62.

The square root of 7989459137 is about 89383.7744615878. The cubic root of 7989459137 is about 1999.1212086695.

The spelling of 7989459137 in words is "seven billion, nine hundred eighty-nine million, four hundred fifty-nine thousand, one hundred thirty-seven".