3731206046689 has 27 divisors (see below), whose sum is σ = 4204694808307. Its totient is φ = 3308501002400.

The previous prime is 3731206046663. The next prime is 3731206046707. The reversal of 3731206046689 is 9866406021373.

The square root of 3731206046689 is 1931633.

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

3731206046689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 179790416289 + 3551415630400 = 424017^2 + 1884520^2 .

It is not a de Polignac number, because 3731206046689 - 2⁵ = 3731206046657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3731206040689) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 871164342 + ... + 871168624.

Almost surely, 2^{3731206046689} is an apocalyptic number.

3731206046689 is the 1931633-rd square number.

3731206046689 is the 965817-th centered octagonal number.

It is an amenable number.

3731206046689 is a deficient number, since it is larger than the sum of its proper divisors (473488761618).

3731206046689 is an frugal number, since it uses more digits than its factorization.

3731206046689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8670 (or 4335 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 55.

The spelling of 3731206046689 in words is "three trillion, seven hundred thirty-one billion, two hundred six million, forty-six thousand, six hundred eighty-nine".