3646544693 has 16 divisors (see below), whose sum is σ = 4246888320. Its totient is φ = 3120018880.

The previous prime is 3646544677. The next prime is 3646544719. The reversal of 3646544693 is 3964456463.

It is a happy number.

It is not a de Polignac number, because 3646544693 - 2⁴ = 3646544677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3646544393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57953 + ... + 103206.

It is an arithmetic number, because the mean of its divisors is an integer number (265430520).

Almost surely, 2^3646544693 is an apocalyptic number.

It is an amenable number.

3646544693 is a deficient number, since it is larger than the sum of its proper divisors (600343627).

3646544693 is a wasteful number, since it uses less digits than its factorization.

3646544693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161209 (or 161187 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 50.

The square root of 3646544693 is about 60386.6267728211. The cubic root of 3646544693 is about 1539.1957194853.

The spelling of 3646544693 in words is "three billion, six hundred forty-six million, five hundred forty-four thousand, six hundred ninety-three".