3812166435529 has 3 divisors (see below), whose sum is σ = 3812168388007. Its totient is φ = 3812164483052.

The previous prime is 3812166435527. The next prime is 3812166435613. The reversal of 3812166435529 is 9255346612183.

The square root of 3812166435529 is 1952477.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 765563751225 + 3046602684304 = 874965^2 + 1745452^2 .

It is not a de Polignac number, because 3812166435529 - 2¹ = 3812166435527 is a prime.

It is a super-3 number, since 3×3812166435529³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3812166435529.

It is not an unprimeable number, because it can be changed into a prime (3812166435527) 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 in 2 ways as a sum of consecutive naturals, for example, 976239 + ... + 2928715.

Almost surely, 2^{3812166435529} is an apocalyptic number.

3812166435529 is the 1952477-th square number.

3812166435529 is the 976239-th centered octagonal number.

It is an amenable number.

3812166435529 is a deficient number, since it is larger than the sum of its proper divisors (1952478).

3812166435529 is an frugal number, since it uses more digits than its factorization.

3812166435529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3904954 (or 1952477 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 55.

The spelling of 3812166435529 in words is "three trillion, eight hundred twelve billion, one hundred sixty-six million, four hundred thirty-five thousand, five hundred twenty-nine".