1980768992 has 12 divisors (see below), whose sum is σ = 3899639016. Its totient is φ = 990384480.

The previous prime is 1980768949. The next prime is 1980768997. The reversal of 1980768992 is 2998670891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980768997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30949484 + ... + 30949547.

It is an arithmetic number, because the mean of its divisors is an integer number (324969918).

Almost surely, 2^1980768992 is an apocalyptic number.

It is an amenable number.

1980768992 is a deficient number, since it is larger than the sum of its proper divisors (1918870024).

1980768992 is an equidigital number, since it uses as much as digits as its factorization.

1980768992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61899041 (or 61899033 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 59.

The square root of 1980768992 is about 44505.8309887592. The cubic root of 1980768992 is about 1255.8697783771.

The spelling of 1980768992 in words is "one billion, nine hundred eighty million, seven hundred sixty-eight thousand, nine hundred ninety-two".