3689680944829 has 12 divisors (see below), whose sum is σ = 4165210524412. Its totient is φ = 3263599848960.

The previous prime is 3689680944797. The next prime is 3689680944899. The reversal of 3689680944829 is 9284490869863.

It can be written as a sum of positive squares in 2 ways, for example, as 1703560092025 + 1986120852804 = 1305205^2 + 1409298^2 .

It is not a de Polignac number, because 3689680944829 - 2⁵ = 3689680944797 is a prime.

It is a super-2 number, since 2×3689680944829² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3689680944899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 412066212 + ... + 412075165.

Almost surely, 2^{3689680944829} is an apocalyptic number.

It is an amenable number.

3689680944829 is a deficient number, since it is larger than the sum of its proper divisors (475529579583).

3689680944829 is a wasteful number, since it uses less digits than its factorization.

3689680944829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824141436 (or 824141425 counting only the distinct ones).

The product of its (nonzero) digits is 1289945088, while the sum is 76.

The spelling of 3689680944829 in words is "three trillion, six hundred eighty-nine billion, six hundred eighty million, nine hundred forty-four thousand, eight hundred twenty-nine".