38648684139 has 16 divisors (see below), whose sum is σ = 56045013024. Its totient is φ = 23548320000.

The previous prime is 38648684131. The next prime is 38648684141. The reversal of 38648684139 is 93148684683.

It is not a de Polignac number, because 38648684139 - 2³ = 38648684131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38648684131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4901962 + ... + 4909839.

It is an arithmetic number, because the mean of its divisors is an integer number (3502813314).

Almost surely, 2^38648684139 is an apocalyptic number.

38648684139 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

38648684139 is a deficient number, since it is larger than the sum of its proper divisors (17396328885).

38648684139 is a wasteful number, since it uses less digits than its factorization.

38648684139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9811918.

The product of its digits is 23887872, while the sum is 60.

The spelling of 38648684139 in words is "thirty-eight billion, six hundred forty-eight million, six hundred eighty-four thousand, one hundred thirty-nine".