38732478239 has 16 divisors (see below), whose sum is σ = 49743386112. Its totient is φ = 29313063648.

The previous prime is 38732478229. The next prime is 38732478247. The reversal of 38732478239 is 93287423783.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38732478239 is a prime.

It is a super-2 number, since 2×38732478239² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38732478229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9250769 + ... + 9254954.

It is an arithmetic number, because the mean of its divisors is an integer number (3108961632).

Almost surely, 2^38732478239 is an apocalyptic number.

38732478239 is a deficient number, since it is larger than the sum of its proper divisors (11010907873).

38732478239 is a wasteful number, since it uses less digits than its factorization.

38732478239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18505766.

The product of its digits is 12192768, while the sum is 56.

The spelling of 38732478239 in words is "thirty-eight billion, seven hundred thirty-two million, four hundred seventy-eight thousand, two hundred thirty-nine".