7989743431296 has 96 divisors (see below), whose sum is σ = 25081438936320. Its totient is φ = 2421134369280.

The previous prime is 7989743431289. The next prime is 7989743431297. The reversal of 7989743431296 is 6921343479897.

It is a happy number.

7989743431296 is a `hidden beast` number, since 7 + 9 + 8 + 97 + 434 + 3 + 12 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (7989743431297) 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 11 ways as a sum of consecutive naturals, for example, 315239200 + ... + 315264543.

It is an arithmetic number, because the mean of its divisors is an integer number (261264988920).

Almost surely, 2^{7989743431296} is an apocalyptic number.

It is an amenable number.

7989743431296 is an abundant number, since it is smaller than the sum of its proper divisors (17091695505024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7989743431296 is a wasteful number, since it uses less digits than its factorization.

7989743431296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630503774 (or 630503759 counting only the distinct ones).

The product of its digits is 493807104, while the sum is 72.

The spelling of 7989743431296 in words is "seven trillion, nine hundred eighty-nine billion, seven hundred forty-three million, four hundred thirty-one thousand, two hundred ninety-six".