3218268012653 has 16 divisors (see below), whose sum is σ = 3376653421680. Its totient is φ = 3063292624896.

The previous prime is 3218268012593. The next prime is 3218268012667. The reversal of 3218268012653 is 3562108628123.

It can be written as a sum of positive squares in 8 ways, for example, as 265582530409 + 2952685482244 = 515347^2 + 1718338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3218268012653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3218268012598 and 3218268012607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3218268015653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1502876 + ... + 2948757.

It is an arithmetic number, because the mean of its divisors is an integer number (211040838855).

Almost surely, 2^{3218268012653} is an apocalyptic number.

It is an amenable number.

3218268012653 is a deficient number, since it is larger than the sum of its proper divisors (158385409027).

3218268012653 is a wasteful number, since it uses less digits than its factorization.

3218268012653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4452016.

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

The spelling of 3218268012653 in words is "three trillion, two hundred eighteen billion, two hundred sixty-eight million, twelve thousand, six hundred fifty-three".