7968113589 has 4 divisors (see below), whose sum is σ = 10624151456. Its totient is φ = 5312075724.

The previous prime is 7968113507. The next prime is 7968113591. The reversal of 7968113589 is 9853118697.

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.

It is a de Polignac number, because none of the positive numbers 2^k-7968113589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7968113599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1328018929 + ... + 1328018934.

It is an arithmetic number, because the mean of its divisors is an integer number (2656037864).

Almost surely, 2^7968113589 is an apocalyptic number.

It is an amenable number.

7968113589 is a deficient number, since it is larger than the sum of its proper divisors (2656037867).

7968113589 is a wasteful number, since it uses less digits than its factorization.

7968113589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656037866.

The product of its digits is 3265920, while the sum is 57.

The square root of 7968113589 is about 89264.2906710180. The cubic root of 7968113589 is about 1997.3392608868.

The spelling of 7968113589 in words is "seven billion, nine hundred sixty-eight million, one hundred thirteen thousand, five hundred eighty-nine".