39536392745897 has 2 divisors, whose sum is σ = 39536392745898. Its totient is φ = 39536392745896.

The previous prime is 39536392745893. The next prime is 39536392745909. The reversal of 39536392745897 is 79854729363593.

39536392745897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37686694824601 + 1849697921296 = 6138949^2 + 1360036^2 .

It is a cyclic number.

It is not a de Polignac number, because 39536392745897 - 2² = 39536392745893 is a prime.

It is a super-2 number, since 2×39536392745897² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (39536392745893) 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, 19768196372948 + 19768196372949.

It is an arithmetic number, because the mean of its divisors is an integer number (19768196372949).

Almost surely, 2^{39536392745897} is an apocalyptic number.

It is an amenable number.

39536392745897 is a deficient number, since it is larger than the sum of its proper divisors (1).

39536392745897 is an equidigital number, since it uses as much as digits as its factorization.

39536392745897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9258883200, while the sum is 80.

The spelling of 39536392745897 in words is "thirty-nine trillion, five hundred thirty-six billion, three hundred ninety-two million, seven hundred forty-five thousand, eight hundred ninety-seven".