98831040521 has 2 divisors, whose sum is σ = 98831040522. Its totient is φ = 98831040520.

The previous prime is 98831040443. The next prime is 98831040541. The reversal of 98831040521 is 12504013889.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67267609600 + 31563430921 = 259360^2 + 177661^2 .

It is a cyclic number.

It is not a de Polignac number, because 98831040521 - 2¹⁸ = 98830778377 is a prime.

It is not a weakly prime, because it can be changed into another prime (98831040541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49415520260 + 49415520261.

It is an arithmetic number, because the mean of its divisors is an integer number (49415520261).

Almost surely, 2^98831040521 is an apocalyptic number.

It is an amenable number.

98831040521 is a deficient number, since it is larger than the sum of its proper divisors (1).

98831040521 is an equidigital number, since it uses as much as digits as its factorization.

98831040521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 98831040521 in words is "ninety-eight billion, eight hundred thirty-one million, forty thousand, five hundred twenty-one".