500830847981 has 2 divisors, whose sum is σ = 500830847982. Its totient is φ = 500830847980.

The previous prime is 500830847971. The next prime is 500830848029. The reversal of 500830847981 is 189748038005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 381466816900 + 119364031081 = 617630^2 + 345491^2 .

It is a cyclic number.

It is not a de Polignac number, because 500830847981 - 2⁶ = 500830847917 is a prime.

It is a super-2 number, since 2×500830847981² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500830847971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250415423990 + 250415423991.

It is an arithmetic number, because the mean of its divisors is an integer number (250415423991).

Almost surely, 2^500830847981 is an apocalyptic number.

It is an amenable number.

500830847981 is a deficient number, since it is larger than the sum of its proper divisors (1).

500830847981 is an equidigital number, since it uses as much as digits as its factorization.

500830847981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 500830847981 in words is "five hundred billion, eight hundred thirty million, eight hundred forty-seven thousand, nine hundred eighty-one".