7988855609616 has 120 divisors (see below), whose sum is σ = 24030619066944. Its totient is φ = 2280315582720.

The previous prime is 7988855609611. The next prime is 7988855609629. The reversal of 7988855609616 is 6169065588897.

It is not an unprimeable number, because it can be changed into a prime (7988855609611) 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 23 ways as a sum of consecutive naturals, for example, 777666 + ... + 4072158.

Almost surely, 2^{7988855609616} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7988855609616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12015309533472).

7988855609616 is an abundant number, since it is smaller than the sum of its proper divisors (16041763457328).

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

7988855609616 is a wasteful number, since it uses less digits than its factorization.

7988855609616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3295549 (or 3295536 counting only the distinct ones).

The product of its (nonzero) digits is 1567641600, while the sum is 78.

The spelling of 7988855609616 in words is "seven trillion, nine hundred eighty-eight billion, eight hundred fifty-five million, six hundred nine thousand, six hundred sixteen".