39144868239 has 32 divisors (see below), whose sum is σ = 56914919424. Its totient is φ = 23862595680.

The previous prime is 39144868201. The next prime is 39144868267. The reversal of 39144868239 is 93286844193.

It is not a de Polignac number, because 39144868239 - 2²³ = 39136479631 is a prime.

It is a super-2 number, since 2×39144868239² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39144868339) 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 in 31 ways as a sum of consecutive naturals, for example, 907 + ... + 279804.

It is an arithmetic number, because the mean of its divisors is an integer number (1778591232).

Almost surely, 2^39144868239 is an apocalyptic number.

39144868239 is a deficient number, since it is larger than the sum of its proper divisors (17770051185).

39144868239 is a wasteful number, since it uses less digits than its factorization.

39144868239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280827.

The product of its digits is 8957952, while the sum is 57.

The spelling of 39144868239 in words is "thirty-nine billion, one hundred forty-four million, eight hundred sixty-eight thousand, two hundred thirty-nine".