1980609806100 has 36 divisors (see below), whose sum is σ = 5730564373184. Its totient is φ = 528162614880.

The previous prime is 1980609806099. The next prime is 1980609806107. The reversal of 1980609806100 is 16089060891.

It is a self number, because there is not a number n which added to its sum of digits gives 1980609806100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980609806107) 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, 3301016044 + ... + 3301016643.

Almost surely, 2^{1980609806100} is an apocalyptic number.

1980609806100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1980609806100 is an abundant number, since it is smaller than the sum of its proper divisors (3749954567084).

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

1980609806100 is a wasteful number, since it uses less digits than its factorization.

1980609806100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6602032704 (or 6602032697 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 48.

The spelling of 1980609806100 in words is "one trillion, nine hundred eighty billion, six hundred nine million, eight hundred six thousand, one hundred".