38758072321 has 4 divisors (see below), whose sum is σ = 38783192512. Its totient is φ = 38732952132.

The previous prime is 38758072289. The next prime is 38758072333. The reversal of 38758072321 is 12327085783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12327085783 = 4261 ⋅2893003.

It is a cyclic number.

It is not a de Polignac number, because 38758072321 - 2⁵ = 38758072289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38758072361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12557781 + ... + 12560866.

It is an arithmetic number, because the mean of its divisors is an integer number (9695798128).

Almost surely, 2^38758072321 is an apocalyptic number.

It is an amenable number.

38758072321 is a deficient number, since it is larger than the sum of its proper divisors (25120191).

38758072321 is a wasteful number, since it uses less digits than its factorization.

38758072321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25120190.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 38758072321 in words is "thirty-eight billion, seven hundred fifty-eight million, seventy-two thousand, three hundred twenty-one".