38639446019 has 2 divisors, whose sum is σ = 38639446020. Its totient is φ = 38639446018.

The previous prime is 38639445989. The next prime is 38639446037. The reversal of 38639446019 is 91064493683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38639446019 - 2⁸ = 38639445763 is a prime.

It is a super-2 number, since 2×38639446019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38639443019) 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 as a sum of consecutive naturals, namely, 19319723009 + 19319723010.

It is an arithmetic number, because the mean of its divisors is an integer number (19319723010).

Almost surely, 2^38639446019 is an apocalyptic number.

38639446019 is a deficient number, since it is larger than the sum of its proper divisors (1).

38639446019 is an equidigital number, since it uses as much as digits as its factorization.

38639446019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3359232, while the sum is 53.

The spelling of 38639446019 in words is "thirty-eight billion, six hundred thirty-nine million, four hundred forty-six thousand, nineteen".