9898928991782 has 16 divisors (see below), whose sum is σ = 15494402621952. Its totient is φ = 4734139973640.

The previous prime is 9898928991779. The next prime is 9898928991799. The reversal of 9898928991782 is 2871998298989.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1265444 + ... + 4625927.

It is an arithmetic number, because the mean of its divisors is an integer number (968400163872).

Almost surely, 2^{9898928991782} is an apocalyptic number.

9898928991782 is a deficient number, since it is larger than the sum of its proper divisors (5595473630170).

9898928991782 is a wasteful number, since it uses less digits than its factorization.

9898928991782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5927923.

The product of its digits is 6772211712, while the sum is 89.

The spelling of 9898928991782 in words is "nine trillion, eight hundred ninety-eight billion, nine hundred twenty-eight million, nine hundred ninety-one thousand, seven hundred eighty-two".