3218743065 has 32 divisors (see below), whose sum is σ = 5264663040. Its totient is φ = 1678509824.

The previous prime is 3218743061. The next prime is 3218743067. The reversal of 3218743065 is 5603478123.

It is a cyclic number.

It is not a de Polignac number, because 3218743065 - 2² = 3218743061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3218743061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1152691 + ... + 1155479.

It is an arithmetic number, because the mean of its divisors is an integer number (164520720).

Almost surely, 2^3218743065 is an apocalyptic number.

It is an amenable number.

3218743065 is a deficient number, since it is larger than the sum of its proper divisors (2045919975).

3218743065 is a wasteful number, since it uses less digits than its factorization.

3218743065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 3218743065 is about 56733.9674709957. The cubic root of 3218743065 is about 1476.4840855119.

The spelling of 3218743065 in words is "three billion, two hundred eighteen million, seven hundred forty-three thousand, sixty-five".