39439367968 has 384 divisors, whose sum is σ = 108418093056. Its totient is φ = 13627699200.

The previous prime is 39439367909. The next prime is 39439367969. The reversal of 39439367968 is 86976393493.

39439367968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (39439367969) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 126814533 + ... + 126814843.

It is an arithmetic number, because the mean of its divisors is an integer number (282338784).

Almost surely, 2^39439367968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39439367968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54209046528).

39439367968 is an abundant number, since it is smaller than the sum of its proper divisors (68978725088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39439367968 is a wasteful number, since it uses less digits than its factorization.

39439367968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 488 counting only the distinct ones).

The product of its digits is 158723712, while the sum is 67.

The spelling of 39439367968 in words is "thirty-nine billion, four hundred thirty-nine million, three hundred sixty-seven thousand, nine hundred sixty-eight".