7995555998 has 8 divisors (see below), whose sum is σ = 12008932320. Its totient is φ = 3992578560.

The previous prime is 7995555989. The next prime is 7995556007. The reversal of 7995555998 is 8995555997.

It is an interprime number because it is at equal distance from previous prime (7995555989) and next prime (7995556007).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2597798 + ... + 2600873.

It is an arithmetic number, because the mean of its divisors is an integer number (1501116540).

Almost surely, 2^7995555998 is an apocalyptic number.

7995555998 is a deficient number, since it is larger than the sum of its proper divisors (4013376322).

7995555998 is a wasteful number, since it uses less digits than its factorization.

7995555998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5199442.

The product of its digits is 229635000, while the sum is 71.

The square root of 7995555998 is about 89417.8729225875. The cubic root of 7995555998 is about 1999.6295979054.

Subtracting 7995555998 from its reverse (8995555997), we obtain a palindrome (999999999).

The spelling of 7995555998 in words is "seven billion, nine hundred ninety-five million, five hundred fifty-five thousand, nine hundred ninety-eight".