3640568005 has 8 divisors (see below), whose sum is σ = 4386088224. Its totient is φ = 2900850000.

The previous prime is 3640567963. The next prime is 3640568011. The reversal of 3640568005 is 5008650463.

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

It is not a de Polignac number, because 3640568005 - 2¹⁵ = 3640535237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1449171 + ... + 1451680.

It is an arithmetic number, because the mean of its divisors is an integer number (548261028).

Almost surely, 2^3640568005 is an apocalyptic number.

It is an amenable number.

3640568005 is a deficient number, since it is larger than the sum of its proper divisors (745520219).

3640568005 is a wasteful number, since it uses less digits than its factorization.

3640568005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2901107.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 3640568005 is about 60337.1196279703. The cubic root of 3640568005 is about 1538.3543455433.

The spelling of 3640568005 in words is "three billion, six hundred forty million, five hundred sixty-eight thousand, five".