5243209875097 has 2 divisors, whose sum is σ = 5243209875098. Its totient is φ = 5243209875096.

The previous prime is 5243209875091. The next prime is 5243209875107. The reversal of 5243209875097 is 7905789023425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4525401035401 + 717808839696 = 2127299^2 + 847236^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5243209875097 is a prime.

It is not a weakly prime, because it can be changed into another prime (5243209875091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2621604937548 + 2621604937549.

It is an arithmetic number, because the mean of its divisors is an integer number (2621604937549).

Almost surely, 2^{5243209875097} is an apocalyptic number.

It is an amenable number.

5243209875097 is a deficient number, since it is larger than the sum of its proper divisors (1).

5243209875097 is an equidigital number, since it uses as much as digits as its factorization.

5243209875097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38102400, while the sum is 61.

The spelling of 5243209875097 in words is "five trillion, two hundred forty-three billion, two hundred nine million, eight hundred seventy-five thousand, ninety-seven".