39639482625749 has 2 divisors, whose sum is σ = 39639482625750. Its totient is φ = 39639482625748.

The previous prime is 39639482625443. The next prime is 39639482625761. The reversal of 39639482625749 is 94752628493693.

39639482625749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39564817063249 + 74665562500 = 6290057^2 + 273250^2 .

It is a cyclic number.

It is not a de Polignac number, because 39639482625749 - 2⁴⁰ = 38539970997973 is a prime.

It is a super-2 number, since 2×39639482625749² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39639482625749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39639482625049) 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, 19819741312874 + 19819741312875.

It is an arithmetic number, because the mean of its divisors is an integer number (19819741312875).

Almost surely, 2^{39639482625749} is an apocalyptic number.

It is an amenable number.

39639482625749 is a deficient number, since it is larger than the sum of its proper divisors (1).

39639482625749 is an equidigital number, since it uses as much as digits as its factorization.

39639482625749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4232632320, while the sum is 77.

The spelling of 39639482625749 in words is "thirty-nine trillion, six hundred thirty-nine billion, four hundred eighty-two million, six hundred twenty-five thousand, seven hundred forty-nine".