38138223671 has 2 divisors, whose sum is σ = 38138223672. Its totient is φ = 38138223670.

The previous prime is 38138223661. The next prime is 38138223677. The reversal of 38138223671 is 17632283183.

38138223671 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 an emirp because it is prime and its reverse (17632283183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38138223671 - 2³⁰ = 37064481847 is a prime.

It is a super-3 number, since 3×38138223671³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38138223677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19069111835 + 19069111836.

It is an arithmetic number, because the mean of its divisors is an integer number (19069111836).

Almost surely, 2^38138223671 is an apocalyptic number.

38138223671 is a deficient number, since it is larger than the sum of its proper divisors (1).

38138223671 is an equidigital number, since it uses as much as digits as its factorization.

38138223671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 44.

The spelling of 38138223671 in words is "thirty-eight billion, one hundred thirty-eight million, two hundred twenty-three thousand, six hundred seventy-one".