39316682718449 has 2 divisors, whose sum is σ = 39316682718450. Its totient is φ = 39316682718448.

The previous prime is 39316682718431. The next prime is 39316682718479. The reversal of 39316682718449 is 94481728661393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39238698246400 + 77984472049 = 6264080^2 + 279257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39316682718449 is a prime.

It is not a weakly prime, because it can be changed into another prime (39316682718479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19658341359224 + 19658341359225.

It is an arithmetic number, because the mean of its divisors is an integer number (19658341359225).

Almost surely, 2^{39316682718449} is an apocalyptic number.

It is an amenable number.

39316682718449 is a deficient number, since it is larger than the sum of its proper divisors (1).

39316682718449 is an equidigital number, since it uses as much as digits as its factorization.

39316682718449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376233984, while the sum is 71.

The spelling of 39316682718449 in words is "thirty-nine trillion, three hundred sixteen billion, six hundred eighty-two million, seven hundred eighteen thousand, four hundred forty-nine".