3806828523181 has 2 divisors, whose sum is σ = 3806828523182. Its totient is φ = 3806828523180.

The previous prime is 3806828523161. The next prime is 3806828523229. The reversal of 3806828523181 is 1813258286083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2385606900681 + 1421221622500 = 1544541^2 + 1192150^2 .

It is a cyclic number.

It is not a de Polignac number, because 3806828523181 - 2¹⁹ = 3806827998893 is a prime.

It is a super-2 number, since 2×3806828523181² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3806828523101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1903414261590 + 1903414261591.

It is an arithmetic number, because the mean of its divisors is an integer number (1903414261591).

Almost surely, 2^{3806828523181} is an apocalyptic number.

It is an amenable number.

3806828523181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3806828523181 is an equidigital number, since it uses as much as digits as its factorization.

3806828523181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4423680, while the sum is 55.

The spelling of 3806828523181 in words is "three trillion, eight hundred six billion, eight hundred twenty-eight million, five hundred twenty-three thousand, one hundred eighty-one".