39999939089539 has 32 divisors (see below), whose sum is σ = 49467098419200. Its totient is φ = 31799183938560.

The previous prime is 39999939089519. The next prime is 39999939089567. The reversal of 39999939089539 is 93598093999993.

It is a cyclic number.

It is not a de Polignac number, because 39999939089539 - 2⁹ = 39999939089027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39999939089519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 245885982 + ... + 246048604.

It is an arithmetic number, because the mean of its divisors is an integer number (1545846825600).

Almost surely, 2^{39999939089539} is an apocalyptic number.

39999939089539 is a deficient number, since it is larger than the sum of its proper divisors (9467159329661).

39999939089539 is a wasteful number, since it uses less digits than its factorization.

39999939089539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253195.

The product of its (nonzero) digits is 46490458680, while the sum is 94.

The spelling of 39999939089539 in words is "thirty-nine trillion, nine hundred ninety-nine billion, nine hundred thirty-nine million, eighty-nine thousand, five hundred thirty-nine".