98520361657 has 2 divisors, whose sum is σ = 98520361658. Its totient is φ = 98520361656.

The previous prime is 98520361627. The next prime is 98520361763. The reversal of 98520361657 is 75616302589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59996093481 + 38524268176 = 244941^2 + 196276^2 .

It is an emirp because it is prime and its reverse (75616302589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98520361657 - 2⁷ = 98520361529 is a prime.

It is a super-2 number, since 2×98520361657² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (98520361627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49260180828 + 49260180829.

It is an arithmetic number, because the mean of its divisors is an integer number (49260180829).

Almost surely, 2^98520361657 is an apocalyptic number.

It is an amenable number.

98520361657 is a deficient number, since it is larger than the sum of its proper divisors (1).

98520361657 is an equidigital number, since it uses as much as digits as its factorization.

98520361657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 98520361657 in words is "ninety-eight billion, five hundred twenty million, three hundred sixty-one thousand, six hundred fifty-seven".