1798989566988 has 48 divisors (see below), whose sum is σ = 4201174204416. Its totient is φ = 599158809600.

The previous prime is 1798989566977. The next prime is 1798989567007. The reversal of 1798989566988 is 8896659898971.

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, 136456245 + ... + 136469427.

It is an arithmetic number, because the mean of its divisors is an integer number (87524462592).

Almost surely, 2^{1798989566988} is an apocalyptic number.

It is an amenable number.

1798989566988 is an abundant number, since it is smaller than the sum of its proper divisors (2402184637428).

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

1798989566988 is a wasteful number, since it uses less digits than its factorization.

1798989566988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21894 (or 21892 counting only the distinct ones).

The product of its digits is 33861058560, while the sum is 93.

The spelling of 1798989566988 in words is "one trillion, seven hundred ninety-eight billion, nine hundred eighty-nine million, five hundred sixty-six thousand, nine hundred eighty-eight".