98515377097 has 2 divisors, whose sum is σ = 98515377098. Its totient is φ = 98515377096.

The previous prime is 98515377089. The next prime is 98515377119. The reversal of 98515377097 is 79077351589.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75135743881 + 23379633216 = 274109^2 + 152904^2 .

It is a cyclic number.

It is not a de Polignac number, because 98515377097 - 2³ = 98515377089 is a prime.

It is a super-2 number, since 2×98515377097² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (98515377067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49257688548 + 49257688549.

It is an arithmetic number, because the mean of its divisors is an integer number (49257688549).

Almost surely, 2^98515377097 is an apocalyptic number.

It is an amenable number.

98515377097 is a deficient number, since it is larger than the sum of its proper divisors (1).

98515377097 is an equidigital number, since it uses as much as digits as its factorization.

98515377097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16669800, while the sum is 61.

The spelling of 98515377097 in words is "ninety-eight billion, five hundred fifteen million, three hundred seventy-seven thousand, ninety-seven".