7989118855351 has 8 divisors (see below), whose sum is σ = 8026463453184. Its totient is φ = 7951827043800.

The previous prime is 7989118855321. The next prime is 7989118855369. The reversal of 7989118855351 is 1535588119897.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7989118855351 is a prime.

It is a super-2 number, since 2×7989118855351² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7989118855321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12893151 + ... + 13498576.

It is an arithmetic number, because the mean of its divisors is an integer number (1003307931648).

Almost surely, 2^{7989118855351} is an apocalyptic number.

7989118855351 is a deficient number, since it is larger than the sum of its proper divisors (37344597833).

7989118855351 is a wasteful number, since it uses less digits than its factorization.

7989118855351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26393141.

The product of its digits is 108864000, while the sum is 70.

The spelling of 7989118855351 in words is "seven trillion, nine hundred eighty-nine billion, one hundred eighteen million, eight hundred fifty-five thousand, three hundred fifty-one".