3685644138453 has 8 divisors (see below), whose sum is σ = 4914265795488. Its totient is φ = 2457059286864.

The previous prime is 3685644138359. The next prime is 3685644138457. The reversal of 3685644138453 is 3548314465863.

It is a happy number.

3685644138453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3685644138453 - 2⁹ = 3685644137941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3685644138457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8966850 + ... + 9368867.

It is an arithmetic number, because the mean of its divisors is an integer number (614283224436).

Almost surely, 2^{3685644138453} is an apocalyptic number.

It is an amenable number.

3685644138453 is a deficient number, since it is larger than the sum of its proper divisors (1228621657035).

3685644138453 is a wasteful number, since it uses less digits than its factorization.

3685644138453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18402723.

The product of its digits is 99532800, while the sum is 60.

The spelling of 3685644138453 in words is "three trillion, six hundred eighty-five billion, six hundred forty-four million, one hundred thirty-eight thousand, four hundred fifty-three".