3641680865 has 8 divisors (see below), whose sum is σ = 4370547840. Its totient is φ = 2912990832.

The previous prime is 3641680849. The next prime is 3641680897. The reversal of 3641680865 is 5680861463.

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

It is a cyclic number.

It is not a de Polignac number, because 3641680865 - 2⁴ = 3641680849 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6296 + ... + 85574.

It is an arithmetic number, because the mean of its divisors is an integer number (546318480).

Almost surely, 2^3641680865 is an apocalyptic number.

It is an amenable number.

3641680865 is a deficient number, since it is larger than the sum of its proper divisors (728866975).

3641680865 is an equidigital number, since it uses as much as digits as its factorization.

3641680865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88471.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 3641680865 is about 60346.3409412700. The cubic root of 3641680865 is about 1538.5110791999.

The spelling of 3641680865 in words is "three billion, six hundred forty-one million, six hundred eighty thousand, eight hundred sixty-five".