39523728668 has 12 divisors (see below), whose sum is σ = 69169182432. Its totient is φ = 19761105120.

The previous prime is 39523728653. The next prime is 39523728707. The reversal of 39523728668 is 86682732593.

39523728668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63305 + ... + 288192.

It is an arithmetic number, because the mean of its divisors is an integer number (5764098536).

Almost surely, 2^39523728668 is an apocalyptic number.

It is an amenable number.

39523728668 is a deficient number, since it is larger than the sum of its proper divisors (29645453764).

39523728668 is a wasteful number, since it uses less digits than its factorization.

39523728668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379612 (or 379610 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 59.

The spelling of 39523728668 in words is "thirty-nine billion, five hundred twenty-three million, seven hundred twenty-eight thousand, six hundred sixty-eight".