1980417613 has 2 divisors, whose sum is σ = 1980417614. Its totient is φ = 1980417612.

The previous prime is 1980417581. The next prime is 1980417619. The reversal of 1980417613 is 3167140891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1256915209 + 723502404 = 35453^2 + 26898^2 .

It is a cyclic number.

It is not a de Polignac number, because 1980417613 - 2⁵ = 1980417581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1980417619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 990208806 + 990208807.

It is an arithmetic number, because the mean of its divisors is an integer number (990208807).

Almost surely, 2^1980417613 is an apocalyptic number.

It is an amenable number.

1980417613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1980417613 is an equidigital number, since it uses as much as digits as its factorization.

1980417613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 1980417613 is about 44501.8832522850. The cubic root of 1980417613 is about 1255.7955122099.

The spelling of 1980417613 in words is "one billion, nine hundred eighty million, four hundred seventeen thousand, six hundred thirteen".