38038417939 has 2 divisors, whose sum is σ = 38038417940. Its totient is φ = 38038417938.

The previous prime is 38038417891. The next prime is 38038417951. The reversal of 38038417939 is 93971483083.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38038417939 - 2⁷ = 38038417811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38038417939.

It is not a weakly prime, because it can be changed into another prime (38038417979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19019208969 + 19019208970.

It is an arithmetic number, because the mean of its divisors is an integer number (19019208970).

Almost surely, 2^38038417939 is an apocalyptic number.

38038417939 is a deficient number, since it is larger than the sum of its proper divisors (1).

38038417939 is an equidigital number, since it uses as much as digits as its factorization.

38038417939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 38038417939 in words is "thirty-eight billion, thirty-eight million, four hundred seventeen thousand, nine hundred thirty-nine".