39994338716 has 24 divisors (see below), whose sum is σ = 74814443424. Its totient is φ = 18661195520.

The previous prime is 39994338707. The next prime is 39994338721. The reversal of 39994338716 is 61783349993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5297705 + ... + 5305248.

It is an arithmetic number, because the mean of its divisors is an integer number (3117268476).

Almost surely, 2^39994338716 is an apocalyptic number.

It is an amenable number.

39994338716 is a deficient number, since it is larger than the sum of its proper divisors (34820104708).

39994338716 is a wasteful number, since it uses less digits than its factorization.

39994338716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10603021 (or 10603019 counting only the distinct ones).

The product of its digits is 26453952, while the sum is 62.

The spelling of 39994338716 in words is "thirty-nine billion, nine hundred ninety-four million, three hundred thirty-eight thousand, seven hundred sixteen".