98876530421 has 2 divisors, whose sum is σ = 98876530422. Its totient is φ = 98876530420.

The previous prime is 98876530391. The next prime is 98876530427. The reversal of 98876530421 is 12403567889.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87743326225 + 11133204196 = 296215^2 + 105514^2 .

It is an emirp because it is prime and its reverse (12403567889) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98876530421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98876530427) 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, 49438265210 + 49438265211.

It is an arithmetic number, because the mean of its divisors is an integer number (49438265211).

It is a 2-persistent number, because it is pandigital, and so is 2⋅98876530421 = 197753060842, but 3⋅98876530421 = 296629591263 is not.

Almost surely, 2^98876530421 is an apocalyptic number.

It is an amenable number.

98876530421 is a deficient number, since it is larger than the sum of its proper divisors (1).

98876530421 is an equidigital number, since it uses as much as digits as its factorization.

98876530421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 98876530421 in words is "ninety-eight billion, eight hundred seventy-six million, five hundred thirty thousand, four hundred twenty-one".