98980821713 has 2 divisors, whose sum is σ = 98980821714. Its totient is φ = 98980821712.

The previous prime is 98980821683. The next prime is 98980821721. The reversal of 98980821713 is 31712808989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97326528784 + 1654292929 = 311972^2 + 40673^2 .

It is an emirp because it is prime and its reverse (31712808989) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98980821713 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (98980521713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49490410856 + 49490410857.

It is an arithmetic number, because the mean of its divisors is an integer number (49490410857).

Almost surely, 2^98980821713 is an apocalyptic number.

It is an amenable number.

98980821713 is a deficient number, since it is larger than the sum of its proper divisors (1).

98980821713 is an equidigital number, since it uses as much as digits as its factorization.

98980821713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 56.

The spelling of 98980821713 in words is "ninety-eight billion, nine hundred eighty million, eight hundred twenty-one thousand, seven hundred thirteen".