1980776196 has 108 divisors (see below), whose sum is σ = 5855915520. Its totient is φ = 562877280.

The previous prime is 1980776191. The next prime is 1980776197. The reversal of 1980776196 is 6916770891.

1980776196 is a `hidden beast` number, since 19 + 8 + 0 + 7 + 7 + 619 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (1980776191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 333985 + ... + 339863.

It is an arithmetic number, because the mean of its divisors is an integer number (54221440).

Almost surely, 2^1980776196 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 1980776196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2927957760).

1980776196 is an abundant number, since it is smaller than the sum of its proper divisors (3875139324).

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

1980776196 is a wasteful number, since it uses less digits than its factorization.

1980776196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6094 (or 6082 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The square root of 1980776196 is about 44505.9119219009. The cubic root of 1980776196 is about 1255.8713008960.

The spelling of 1980776196 in words is "one billion, nine hundred eighty million, seven hundred seventy-six thousand, one hundred ninety-six".