39650529913 has 2 divisors, whose sum is σ = 39650529914. Its totient is φ = 39650529912.

The previous prime is 39650529899. The next prime is 39650529953. The reversal of 39650529913 is 31992505693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38750709904 + 899820009 = 196852^2 + 29997^2 .

It is an emirp because it is prime and its reverse (31992505693) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39650529913 - 2¹⁷ = 39650398841 is a prime.

It is not a weakly prime, because it can be changed into another prime (39650529953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19825264956 + 19825264957.

It is an arithmetic number, because the mean of its divisors is an integer number (19825264957).

Almost surely, 2^39650529913 is an apocalyptic number.

It is an amenable number.

39650529913 is a deficient number, since it is larger than the sum of its proper divisors (1).

39650529913 is an equidigital number, since it uses as much as digits as its factorization.

39650529913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1968300, while the sum is 52.

The spelling of 39650529913 in words is "thirty-nine billion, six hundred fifty million, five hundred twenty-nine thousand, nine hundred thirteen".