1980607845099 has 16 divisors (see below), whose sum is σ = 2879949094400. Its totient is φ = 1203407296416.

The previous prime is 1980607845089. The next prime is 1980607845121. The reversal of 1980607845099 is 9905487060891.

It is not a de Polignac number, because 1980607845099 - 2⁹ = 1980607844587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1980607845089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321419809 + ... + 321425970.

It is an arithmetic number, because the mean of its divisors is an integer number (179996818400).

Almost surely, 2^{1980607845099} is an apocalyptic number.

1980607845099 is a deficient number, since it is larger than the sum of its proper divisors (899341249301).

1980607845099 is a wasteful number, since it uses less digits than its factorization.

1980607845099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642845874.

The product of its (nonzero) digits is 39191040, while the sum is 66.

The spelling of 1980607845099 in words is "one trillion, nine hundred eighty billion, six hundred seven million, eight hundred forty-five thousand, ninety-nine".