38138480571 has 4 divisors (see below), whose sum is σ = 50851307432. Its totient is φ = 25425653712.

The previous prime is 38138480489. The next prime is 38138480591. The reversal of 38138480571 is 17508483183.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17508483183 = 3 ⋅5836161061.

It is not a de Polignac number, because 38138480571 - 2¹⁴ = 38138464187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38138480571.

It is not an unprimeable number, because it can be changed into a prime (38138480591) 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 3 ways as a sum of consecutive naturals, for example, 6356413426 + ... + 6356413431.

It is an arithmetic number, because the mean of its divisors is an integer number (12712826858).

Almost surely, 2^38138480571 is an apocalyptic number.

38138480571 is a deficient number, since it is larger than the sum of its proper divisors (12712826861).

38138480571 is a wasteful number, since it uses less digits than its factorization.

38138480571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12712826860.

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 38138480571 in words is "thirty-eight billion, one hundred thirty-eight million, four hundred eighty thousand, five hundred seventy-one".