1980880841 has 2 divisors, whose sum is σ = 1980880842. Its totient is φ = 1980880840.

The previous prime is 1980880831. The next prime is 1980880843. The reversal of 1980880841 is 1480880891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1223530441 + 757350400 = 34979^2 + 27520^2 .

It is a cyclic number.

It is not a de Polignac number, because 1980880841 - 2³⁰ = 907139017 is a prime.

Together with 1980880843, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1980880843) by changing a digit.

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 as a sum of consecutive naturals, namely, 990440420 + 990440421.

It is an arithmetic number, because the mean of its divisors is an integer number (990440421).

Almost surely, 2^1980880841 is an apocalyptic number.

It is an amenable number.

1980880841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1980880841 is an equidigital number, since it uses as much as digits as its factorization.

1980880841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 147456, while the sum is 47.

The square root of 1980880841 is about 44507.0875367059. The cubic root of 1980880841 is about 1255.8934165256.

The spelling of 1980880841 in words is "one billion, nine hundred eighty million, eight hundred eighty thousand, eight hundred forty-one".