3218144769 has 16 divisors (see below), whose sum is σ = 5448711040. Its totient is φ = 1838939760.

The previous prime is 3218144753. The next prime is 3218144771. The reversal of 3218144769 is 9674418123.

It is not a de Polignac number, because 3218144769 - 2⁴ = 3218144753 is a prime.

It is a super-2 number, since 2×3218144769² = 20712911508484126722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3218142769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8513422 + ... + 8513799.

It is an arithmetic number, because the mean of its divisors is an integer number (340544440).

Almost surely, 2^3218144769 is an apocalyptic number.

It is an amenable number.

3218144769 is a deficient number, since it is larger than the sum of its proper divisors (2230566271).

3218144769 is a wasteful number, since it uses less digits than its factorization.

3218144769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17027237 (or 17027231 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 3218144769 is about 56728.6944059177. The cubic root of 3218144769 is about 1476.3925974948.

The spelling of 3218144769 in words is "three billion, two hundred eighteen million, one hundred forty-four thousand, seven hundred sixty-nine".