38678424383509 has 2 divisors, whose sum is σ = 38678424383510. Its totient is φ = 38678424383508.

The previous prime is 38678424383363. The next prime is 38678424383537. The reversal of 38678424383509 is 90538342487683.

It is a happy number.

38678424383509 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 can be written as a sum of positive squares in only one way, i.e., 30409952888484 + 8268471495025 = 5514522^2 + 2875495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38678424383509 is a prime.

It is a super-2 number, since 2×38678424383509² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38678424383539) 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, 19339212191754 + 19339212191755.

It is an arithmetic number, because the mean of its divisors is an integer number (19339212191755).

Almost surely, 2^{38678424383509} is an apocalyptic number.

It is an amenable number.

38678424383509 is a deficient number, since it is larger than the sum of its proper divisors (1).

38678424383509 is an equidigital number, since it uses as much as digits as its factorization.

38678424383509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 836075520, while the sum is 70.

The spelling of 38678424383509 in words is "thirty-eight trillion, six hundred seventy-eight billion, four hundred twenty-four million, three hundred eighty-three thousand, five hundred nine".