1980383400396 has 192 divisors, whose sum is σ = 5552319360000. Its totient is φ = 608373711360.

The previous prime is 1980383400361. The next prime is 1980383400403. The reversal of 1980383400396 is 6930043830891.

1980383400396 is a `hidden beast` number, since 198 + 0 + 38 + 34 + 0 + 0 + 396 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 63 ways as a sum of consecutive naturals, for example, 29328345 + ... + 29395791.

It is an arithmetic number, because the mean of its divisors is an integer number (28918330000).

Almost surely, 2^{1980383400396} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1980383400396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2776159680000).

1980383400396 is an abundant number, since it is smaller than the sum of its proper divisors (3571935959604).

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

1980383400396 is a wasteful number, since it uses less digits than its factorization.

1980383400396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67869 (or 67861 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 1980383400396 in words is "one trillion, nine hundred eighty billion, three hundred eighty-three million, four hundred thousand, three hundred ninety-six".