38685340239 has 32 divisors (see below), whose sum is σ = 63635335680. Its totient is φ = 20356693632.

The previous prime is 38685340223. The next prime is 38685340259. The reversal of 38685340239 is 93204358683.

It is not a de Polignac number, because 38685340239 - 2⁴ = 38685340223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38685340191 and 38685340200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38685340259) 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 31 ways as a sum of consecutive naturals, for example, 54712 + ... + 283485.

It is an arithmetic number, because the mean of its divisors is an integer number (1988604240).

Almost surely, 2^38685340239 is an apocalyptic number.

38685340239 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

38685340239 is a deficient number, since it is larger than the sum of its proper divisors (24949995441).

38685340239 is a wasteful number, since it uses less digits than its factorization.

38685340239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338639.

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 38685340239 in words is "thirty-eight billion, six hundred eighty-five million, three hundred forty thousand, two hundred thirty-nine".