1980393805080 has 288 divisors, whose sum is σ = 6840586771200. Its totient is φ = 496790618112.

The previous prime is 1980393805051. The next prime is 1980393805087. The reversal of 1980393805080 is 805083930891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980393805087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 294741961 + ... + 294748679.

It is an arithmetic number, because the mean of its divisors is an integer number (23752037400).

Almost surely, 2^{1980393805080} is an apocalyptic number.

1980393805080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1980393805080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3420293385600).

1980393805080 is an abundant number, since it is smaller than the sum of its proper divisors (4860192966120).

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

1980393805080 is a wasteful number, since it uses less digits than its factorization.

1980393805080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9603 (or 9579 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 1980393805080 in words is "one trillion, nine hundred eighty billion, three hundred ninety-three million, eight hundred five thousand, eighty".