983820140917 has 2 divisors, whose sum is σ = 983820140918. Its totient is φ = 983820140916.

The previous prime is 983820140909. The next prime is 983820140929. The reversal of 983820140917 is 719041028389.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 860786861796 + 123033279121 = 927786^2 + 350761^2 .

It is a cyclic number.

It is not a de Polignac number, because 983820140917 - 2³ = 983820140909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (983820140617) 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 as a sum of consecutive naturals, namely, 491910070458 + 491910070459.

It is an arithmetic number, because the mean of its divisors is an integer number (491910070459).

Almost surely, 2^983820140917 is an apocalyptic number.

It is an amenable number.

983820140917 is a deficient number, since it is larger than the sum of its proper divisors (1).

983820140917 is an equidigital number, since it uses as much as digits as its factorization.

983820140917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 983820140917 in words is "nine hundred eighty-three billion, eight hundred twenty million, one hundred forty thousand, nine hundred seventeen".