3406999789636 has 27 divisors (see below), whose sum is σ = 6018161778909. Its totient is φ = 1687672108368.

The previous prime is 3406999789607. The next prime is 3406999789639. The reversal of 3406999789636 is 6369879996043.

The square root of 3406999789636 is 1845806.

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

It can be written as a sum of positive squares in only one way, i.e., 2374662508036 + 1032337281600 = 1540994^2 + 1016040^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3406999789639) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 402381475 + ... + 402389941.

Almost surely, 2^{3406999789636} is an apocalyptic number.

3406999789636 is the 1845806-th square number.

It is an amenable number.

3406999789636 is a deficient number, since it is larger than the sum of its proper divisors (2611161989273).

3406999789636 is an frugal number, since it uses more digits than its factorization.

3406999789636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17156 (or 8578 counting only the distinct ones).

The product of its (nonzero) digits is 2857026816, while the sum is 79.

The spelling of 3406999789636 in words is "three trillion, four hundred six billion, nine hundred ninety-nine million, seven hundred eighty-nine thousand, six hundred thirty-six".