7989127854369 has 16 divisors (see below), whose sum is σ = 10658868042240. Its totient is φ = 5322736823040.

The previous prime is 7989127854347. The next prime is 7989127854377. The reversal of 7989127854369 is 9634587219897.

It is not a de Polignac number, because 7989127854369 - 2¹⁹ = 7989127330081 is a prime.

It is a super-2 number, since 2×7989127854369² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7989127854294 and 7989127854303.

It is not an unprimeable number, because it can be changed into a prime (7989127894369) 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, 115220299 + ... + 115289615.

It is an arithmetic number, because the mean of its divisors is an integer number (666179252640).

Almost surely, 2^{7989127854369} is an apocalyptic number.

It is an amenable number.

7989127854369 is a deficient number, since it is larger than the sum of its proper divisors (2669740187871).

7989127854369 is a wasteful number, since it uses less digits than its factorization.

7989127854369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92920.

The product of its digits is 1646023680, while the sum is 78.

The spelling of 7989127854369 in words is "seven trillion, nine hundred eighty-nine billion, one hundred twenty-seven million, eight hundred fifty-four thousand, three hundred sixty-nine".