39536392745947 has 2 divisors, whose sum is σ = 39536392745948. Its totient is φ = 39536392745946.

The previous prime is 39536392745929. The next prime is 39536392745987. The reversal of 39536392745947 is 74954729363593.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39536392745947 - 2¹⁹ = 39536392221659 is a prime.

It is not a weakly prime, because it can be changed into another prime (39536392745987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19768196372973 + 19768196372974.

It is an arithmetic number, because the mean of its divisors is an integer number (19768196372974).

Almost surely, 2^{39536392745947} is an apocalyptic number.

39536392745947 is a deficient number, since it is larger than the sum of its proper divisors (1).

39536392745947 is an equidigital number, since it uses as much as digits as its factorization.

39536392745947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4629441600, while the sum is 76.

The spelling of 39536392745947 in words is "thirty-nine trillion, five hundred thirty-six billion, three hundred ninety-two million, seven hundred forty-five thousand, nine hundred forty-seven".