7898789798 has 32 divisors (see below), whose sum is σ = 13279606560. Its totient is φ = 3505420800.

The previous prime is 7898789753. The next prime is 7898789803. The reversal of 7898789798 is 8979878987.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50753 + ... + 135548.

It is an arithmetic number, because the mean of its divisors is an integer number (414987705).

Almost surely, 2^7898789798 is an apocalyptic number.

7898789798 is a deficient number, since it is larger than the sum of its proper divisors (5380816762).

7898789798 is a wasteful number, since it uses less digits than its factorization.

7898789798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186392.

The product of its digits is 1024192512, while the sum is 80.

The square root of 7898789798 is about 88875.1359942701. The cubic root of 7898789798 is about 1991.5299966589.

It can be divided in two parts, 789878979 and 8, that added together give a palindrome (789878987).

The spelling of 7898789798 in words is "seven billion, eight hundred ninety-eight million, seven hundred eighty-nine thousand, seven hundred ninety-eight".