79698289698 has 24 divisors (see below), whose sum is σ = 172837946736. Its totient is φ = 26541739800.

The previous prime is 79698289691. The next prime is 79698289729. The reversal of 79698289698 is 89698289697.

It is not an unprimeable number, because it can be changed into a prime (79698289691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2009548 + ... + 2048823.

It is an arithmetic number, because the mean of its divisors is an integer number (7201581114).

Almost surely, 2^79698289698 is an apocalyptic number.

79698289698 is an abundant number, since it is smaller than the sum of its proper divisors (93139657038).

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

79698289698 is a wasteful number, since it uses less digits than its factorization.

79698289698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4059470 (or 4059467 counting only the distinct ones).

The product of its digits is 1693052928, while the sum is 81.

Subtracting 79698289698 from its reverse (89698289697), we obtain a palindrome (9999999999).

The spelling of 79698289698 in words is "seventy-nine billion, six hundred ninety-eight million, two hundred eighty-nine thousand, six hundred ninety-eight".