38242221475901 has 2 divisors, whose sum is σ = 38242221475902. Its totient is φ = 38242221475900.

The previous prime is 38242221475739. The next prime is 38242221475921. The reversal of 38242221475901 is 10957412224283.

38242221475901 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., 37656644523001 + 585576952900 = 6136501^2 + 765230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38242221475901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38242221475901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38242221475921) 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, 19121110737950 + 19121110737951.

It is an arithmetic number, because the mean of its divisors is an integer number (19121110737951).

Almost surely, 2^{38242221475901} is an apocalyptic number.

It is an amenable number.

38242221475901 is a deficient number, since it is larger than the sum of its proper divisors (1).

38242221475901 is an equidigital number, since it uses as much as digits as its factorization.

38242221475901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 38242221475901 in words is "thirty-eight trillion, two hundred forty-two billion, two hundred twenty-one million, four hundred seventy-five thousand, nine hundred one".