39885319389 has 16 divisors (see below), whose sum is σ = 55024542720. Its totient is φ = 25668498240.

The previous prime is 39885319339. The next prime is 39885319423. The reversal of 39885319389 is 98391358893.

It is not a de Polignac number, because 39885319389 - 2¹² = 39885315293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39885319339) 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 15 ways as a sum of consecutive naturals, for example, 457284 + ... + 537474.

It is an arithmetic number, because the mean of its divisors is an integer number (3439033920).

Almost surely, 2^39885319389 is an apocalyptic number.

It is an amenable number.

39885319389 is a deficient number, since it is larger than the sum of its proper divisors (15139223331).

39885319389 is a wasteful number, since it uses less digits than its factorization.

39885319389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85940.

The product of its digits is 50388480, while the sum is 66.

The spelling of 39885319389 in words is "thirty-nine billion, eight hundred eighty-five million, three hundred nineteen thousand, three hundred eighty-nine".