39869872664079 has 16 divisors (see below), whose sum is σ = 55961893975680. Its totient is φ = 25179092128800.

The previous prime is 39869872664071. The next prime is 39869872664137. The reversal of 39869872664079 is 97046627896893.

39869872664079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39869872664079 - 2³ = 39869872664071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39869872663992 and 39869872664010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39869872664071) 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 in 15 ways as a sum of consecutive naturals, for example, 25341897 + ... + 26869154.

It is an arithmetic number, because the mean of its divisors is an integer number (3497618373480).

Almost surely, 2^{39869872664079} is an apocalyptic number.

39869872664079 is a deficient number, since it is larger than the sum of its proper divisors (16092021311601).

39869872664079 is a wasteful number, since it uses less digits than its factorization.

39869872664079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52224470.

The product of its (nonzero) digits is 11851370496, while the sum is 84.

The spelling of 39869872664079 in words is "thirty-nine trillion, eight hundred sixty-nine billion, eight hundred seventy-two million, six hundred sixty-four thousand, seventy-nine".