98705979898 has 16 divisors (see below), whose sum is σ = 150530639976. Its totient is φ = 48529578240.

The previous prime is 98705979893. The next prime is 98705979901. The reversal of 98705979898 is 89897950789.

It can be written as a sum of positive squares in 4 ways, for example, as 49522716369 + 49183263529 = 222537^2 + 221773^2 .

It is not an unprimeable number, because it can be changed into a prime (98705979893) 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, 300990 + ... + 536662.

Almost surely, 2^98705979898 is an apocalyptic number.

98705979898 is a deficient number, since it is larger than the sum of its proper divisors (51824660078).

98705979898 is a wasteful number, since it uses less digits than its factorization.

98705979898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239169.

The product of its (nonzero) digits is 823011840, while the sum is 79.

The spelling of 98705979898 in words is "ninety-eight billion, seven hundred five million, nine hundred seventy-nine thousand, eight hundred ninety-eight".