38923009138209 has 16 divisors (see below), whose sum is σ = 59385670178688. Its totient is φ = 22213812698112.

The previous prime is 38923009138207. The next prime is 38923009138217. The reversal of 38923009138209 is 90283190032983.

It is not a de Polignac number, because 38923009138209 - 2¹ = 38923009138207 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38923009138207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1162766592 + ... + 1162800065.

It is an arithmetic number, because the mean of its divisors is an integer number (3711604386168).

Almost surely, 2^{38923009138209} is an apocalyptic number.

It is an amenable number.

38923009138209 is a deficient number, since it is larger than the sum of its proper divisors (20462661040479).

38923009138209 is a wasteful number, since it uses less digits than its factorization.

38923009138209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325567464.

The product of its (nonzero) digits is 5038848, while the sum is 57.

The spelling of 38923009138209 in words is "thirty-eight trillion, nine hundred twenty-three billion, nine million, one hundred thirty-eight thousand, two hundred nine".