3866835146329 has 3 divisors (see below), whose sum is σ = 3866837112757. Its totient is φ = 3866833179902.

The previous prime is 3866835146311. The next prime is 3866835146341. The reversal of 3866835146329 is 9236415386683.

The square root of 3866835146329 is 1966427.

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 is not a de Polignac number, because 3866835146329 - 2²⁵ = 3866801591897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3866835146029) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 983214 + ... + 2949640.

Almost surely, 2^{3866835146329} is an apocalyptic number.

3866835146329 is the 1966427-th square number.

3866835146329 is the 983214-th centered octagonal number.

It is an amenable number.

3866835146329 is a deficient number, since it is larger than the sum of its proper divisors (1966428).

3866835146329 is an frugal number, since it uses more digits than its factorization.

3866835146329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932854 (or 1966427 counting only the distinct ones).

The product of its digits is 134369280, while the sum is 64.

Multiplying 3866835146329 by its sum of digits (64), we get a square (247477449365056 = 15731416²).

The spelling of 3866835146329 in words is "three trillion, eight hundred sixty-six billion, eight hundred thirty-five million, one hundred forty-six thousand, three hundred twenty-nine".