38971328907 has 24 divisors (see below), whose sum is σ = 60851034000. Its totient is φ = 22119859776.

The previous prime is 38971328867. The next prime is 38971328909. The reversal of 38971328907 is 70982317983.

38971328907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38971328907 - 2¹¹ = 38971326859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38971328909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 867732 + ... + 911537.

It is an arithmetic number, because the mean of its divisors is an integer number (2535459750).

Almost surely, 2^38971328907 is an apocalyptic number.

38971328907 is a deficient number, since it is larger than the sum of its proper divisors (21879705093).

38971328907 is a wasteful number, since it uses less digits than its factorization.

38971328907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779435 (or 1779428 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 57.

The spelling of 38971328907 in words is "thirty-eight billion, nine hundred seventy-one million, three hundred twenty-eight thousand, nine hundred seven".