3213851065 has 16 divisors (see below), whose sum is σ = 4154121216. Its totient is φ = 2379960000.

The previous prime is 3213851057. The next prime is 3213851087. The reversal of 3213851065 is 5601583123.

It is not a de Polignac number, because 3213851065 - 2³ = 3213851057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3213851065.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447186 + ... + 454315.

It is an arithmetic number, because the mean of its divisors is an integer number (259632576).

Almost surely, 2^3213851065 is an apocalyptic number.

It is an amenable number.

3213851065 is a deficient number, since it is larger than the sum of its proper divisors (940270151).

3213851065 is a wasteful number, since it uses less digits than its factorization.

3213851065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901560.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 3213851065 is about 56690.8375753966. The cubic root of 3213851065 is about 1475.7356958082.

The spelling of 3213851065 in words is "three billion, two hundred thirteen million, eight hundred fifty-one thousand, sixty-five".