72512536210529 has 2 divisors, whose sum is σ = 72512536210530. Its totient is φ = 72512536210528.

The previous prime is 72512536210523. The next prime is 72512536210547. The reversal of 72512536210529 is 92501263521527.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60628383134929 + 11884153075600 = 7786423^2 + 3447340^2 .

It is a cyclic number.

It is not a de Polignac number, because 72512536210529 - 2¹² = 72512536206433 is a prime.

It is not a weakly prime, because it can be changed into another prime (72512536210523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36256268105264 + 36256268105265.

It is an arithmetic number, because the mean of its divisors is an integer number (36256268105265).

Almost surely, 2^{72512536210529} is an apocalyptic number.

It is an amenable number.

72512536210529 is a deficient number, since it is larger than the sum of its proper divisors (1).

72512536210529 is an equidigital number, since it uses as much as digits as its factorization.

72512536210529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268000, while the sum is 50.

The spelling of 72512536210529 in words is "seventy-two trillion, five hundred twelve billion, five hundred thirty-six million, two hundred ten thousand, five hundred twenty-nine".