39663073069 has 2 divisors, whose sum is σ = 39663073070. Its totient is φ = 39663073068.

The previous prime is 39663073063. The next prime is 39663073103. The reversal of 39663073069 is 96037036693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39625679844 + 37393225 = 199062^2 + 6115^2 .

It is a cyclic number.

It is not a de Polignac number, because 39663073069 - 2¹⁵ = 39663040301 is a prime.

It is a super-2 number, since 2×39663073069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39663073063) 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, 19831536534 + 19831536535.

It is an arithmetic number, because the mean of its divisors is an integer number (19831536535).

Almost surely, 2^39663073069 is an apocalyptic number.

It is an amenable number.

39663073069 is a deficient number, since it is larger than the sum of its proper divisors (1).

39663073069 is an equidigital number, since it uses as much as digits as its factorization.

39663073069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3306744, while the sum is 52.

The spelling of 39663073069 in words is "thirty-nine billion, six hundred sixty-three million, seventy-three thousand, sixty-nine".