39939512704 has 512 divisors, whose sum is σ = 109670400000. Its totient is φ = 14338695168.

The previous prime is 39939512699. The next prime is 39939512747. The reversal of 39939512704 is 40721593993.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 314484289 + ... + 314484415.

It is an arithmetic number, because the mean of its divisors is an integer number (214200000).

Almost surely, 2^39939512704 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 39939512704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54835200000).

39939512704 is an abundant number, since it is smaller than the sum of its proper divisors (69730887296).

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

39939512704 is a wasteful number, since it uses less digits than its factorization.

39939512704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 52.

The spelling of 39939512704 in words is "thirty-nine billion, nine hundred thirty-nine million, five hundred twelve thousand, seven hundred four".