3684269661 has 16 divisors (see below), whose sum is σ = 4957924608. Its totient is φ = 2433499200.

The previous prime is 3684269639. The next prime is 3684269669. The reversal of 3684269661 is 1669624863.

It is a happy number.

It is not a de Polignac number, because 3684269661 - 2⁵ = 3684269629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3684269669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134635 + ... + 159671.

It is an arithmetic number, because the mean of its divisors is an integer number (309870288).

Almost surely, 2^3684269661 is an apocalyptic number.

It is an amenable number.

3684269661 is a deficient number, since it is larger than the sum of its proper divisors (1273654947).

3684269661 is a wasteful number, since it uses less digits than its factorization.

3684269661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25492.

The product of its digits is 2239488, while the sum is 51.

The square root of 3684269661 is about 60698.1849893388. The cubic root of 3684269661 is about 1544.4853857360.

The spelling of 3684269661 in words is "three billion, six hundred eighty-four million, two hundred sixty-nine thousand, six hundred sixty-one".