38813858610829 has 2 divisors, whose sum is σ = 38813858610830. Its totient is φ = 38813858610828.

The previous prime is 38813858610757. The next prime is 38813858610847. The reversal of 38813858610829 is 92801685831883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21863947292100 + 16949911318729 = 4675890^2 + 4117027^2 .

It is a cyclic number.

It is not a de Polignac number, because 38813858610829 - 2¹⁷ = 38813858479757 is a prime.

It is a super-2 number, since 2×38813858610829² (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 (38813858610029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19406929305414 + 19406929305415.

It is an arithmetic number, because the mean of its divisors is an integer number (19406929305415).

Almost surely, 2^{38813858610829} is an apocalyptic number.

It is an amenable number.

38813858610829 is a deficient number, since it is larger than the sum of its proper divisors (1).

38813858610829 is an equidigital number, since it uses as much as digits as its factorization.

38813858610829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 159252480, while the sum is 70.

The spelling of 38813858610829 in words is "thirty-eight trillion, eight hundred thirteen billion, eight hundred fifty-eight million, six hundred ten thousand, eight hundred twenty-nine".