38817429112769 has 2 divisors, whose sum is σ = 38817429112770. Its totient is φ = 38817429112768.

The previous prime is 38817429112729. The next prime is 38817429112837. The reversal of 38817429112769 is 96721192471883.

It is an a-pointer prime, because the next prime (38817429112837) can be obtained adding 38817429112769 to its sum of digits (68).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37838245638400 + 979183474369 = 6151280^2 + 989537^2 .

It is a cyclic number.

It is not a de Polignac number, because 38817429112769 - 2³⁶ = 38748709636033 is a prime.

It is a super-2 number, since 2×38817429112769² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38817429112699 and 38817429112708.

It is not a weakly prime, because it can be changed into another prime (38817429112729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19408714556384 + 19408714556385.

It is an arithmetic number, because the mean of its divisors is an integer number (19408714556385).

Almost surely, 2^{38817429112769} is an apocalyptic number.

It is an amenable number.

38817429112769 is a deficient number, since it is larger than the sum of its proper divisors (1).

38817429112769 is an equidigital number, since it uses as much as digits as its factorization.

38817429112769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73156608, while the sum is 68.

The spelling of 38817429112769 in words is "thirty-eight trillion, eight hundred seventeen billion, four hundred twenty-nine million, one hundred twelve thousand, seven hundred sixty-nine".