3645606243 has 8 divisors (see below), whose sum is σ = 4861408000. Its totient is φ = 2430104328.

The previous prime is 3645606241. The next prime is 3645606271. The reversal of 3645606243 is 3426065463.

3645606243 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 3645606243 - 2¹ = 3645606241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3645606241) 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, 44863 + ... + 96456.

It is an arithmetic number, because the mean of its divisors is an integer number (607676000).

Almost surely, 2^3645606243 is an apocalyptic number.

3645606243 is a deficient number, since it is larger than the sum of its proper divisors (1215801757).

3645606243 is a wasteful number, since it uses less digits than its factorization.

3645606243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149921.

The product of its (nonzero) digits is 311040, while the sum is 39.

The square root of 3645606243 is about 60378.8559265576. The cubic root of 3645606243 is about 1539.0636691679.

The spelling of 3645606243 in words is "three billion, six hundred forty-five million, six hundred six thousand, two hundred forty-three".