38318049839 has 2 divisors, whose sum is σ = 38318049840. Its totient is φ = 38318049838.

The previous prime is 38318049829. The next prime is 38318049883. The reversal of 38318049839 is 93894081383.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38318049839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38318049829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19159024919 + 19159024920.

It is an arithmetic number, because the mean of its divisors is an integer number (19159024920).

Almost surely, 2^38318049839 is an apocalyptic number.

38318049839 is a deficient number, since it is larger than the sum of its proper divisors (1).

38318049839 is an equidigital number, since it uses as much as digits as its factorization.

38318049839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4478976, while the sum is 56.

The spelling of 38318049839 in words is "thirty-eight billion, three hundred eighteen million, forty-nine thousand, eight hundred thirty-nine".