38318033423447 has 2 divisors, whose sum is σ = 38318033423448. Its totient is φ = 38318033423446.

The previous prime is 38318033423399. The next prime is 38318033423477. The reversal of 38318033423447 is 74432433081383.

38318033423447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38318033423447 - 2²⁶ = 38317966314583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38318033423477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19159016711723 + 19159016711724.

It is an arithmetic number, because the mean of its divisors is an integer number (19159016711724).

Almost surely, 2^{38318033423447} is an apocalyptic number.

38318033423447 is a deficient number, since it is larger than the sum of its proper divisors (1).

38318033423447 is an equidigital number, since it uses as much as digits as its factorization.

38318033423447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13934592, while the sum is 53.

The spelling of 38318033423447 in words is "thirty-eight trillion, three hundred eighteen billion, thirty-three million, four hundred twenty-three thousand, four hundred forty-seven".