72315770636089 has 2 divisors, whose sum is σ = 72315770636090. Its totient is φ = 72315770636088.

The previous prime is 72315770636027. The next prime is 72315770636141. The reversal of 72315770636089 is 98063607751327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64450662565689 + 7865108070400 = 8028117^2 + 2804480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72315770636089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72315770636089.

It is not a weakly prime, because it can be changed into another prime (72315770636789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36157885318044 + 36157885318045.

It is an arithmetic number, because the mean of its divisors is an integer number (36157885318045).

Almost surely, 2^{72315770636089} is an apocalyptic number.

It is an amenable number.

72315770636089 is a deficient number, since it is larger than the sum of its proper divisors (1).

72315770636089 is an equidigital number, since it uses as much as digits as its factorization.

72315770636089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80015040, while the sum is 64.

The spelling of 72315770636089 in words is "seventy-two trillion, three hundred fifteen billion, seven hundred seventy million, six hundred thirty-six thousand, eighty-nine".