38188660339 has 4 divisors (see below), whose sum is σ = 39420552640. Its totient is φ = 36956768040.

The previous prime is 38188660337. The next prime is 38188660343. The reversal of 38188660339 is 93306688183.

38188660339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38188660339 - 2¹ = 38188660337 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 38188660339.

It is not an unprimeable number, because it can be changed into a prime (38188660337) 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, 615946104 + ... + 615946165.

It is an arithmetic number, because the mean of its divisors is an integer number (9855138160).

Almost surely, 2^38188660339 is an apocalyptic number.

38188660339 is a deficient number, since it is larger than the sum of its proper divisors (1231892301).

38188660339 is a wasteful number, since it uses less digits than its factorization.

38188660339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231892300.

The product of its (nonzero) digits is 4478976, while the sum is 55.

It can be divided in two parts, 381886 and 60339, that added together give a square (442225 = 665²).

The spelling of 38188660339 in words is "thirty-eight billion, one hundred eighty-eight million, six hundred sixty thousand, three hundred thirty-nine".