1998719728846 has 16 divisors (see below), whose sum is σ = 3028380579360. Its totient is φ = 989263568800.

The previous prime is 1998719728783. The next prime is 1998719728897. The reversal of 1998719728846 is 6488279178991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12121 + ... + 1999396.

It is an arithmetic number, because the mean of its divisors is an integer number (189273786210).

Almost surely, 2^{1998719728846} is an apocalyptic number.

1998719728846 is a deficient number, since it is larger than the sum of its proper divisors (1029660850514).

1998719728846 is a wasteful number, since it uses less digits than its factorization.

1998719728846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016539.

The product of its digits is 877879296, while the sum is 79.

The spelling of 1998719728846 in words is "one trillion, nine hundred ninety-eight billion, seven hundred nineteen million, seven hundred twenty-eight thousand, eight hundred forty-six".