3213648396436 has 6 divisors (see below), whose sum is σ = 5623884693770. Its totient is φ = 1606824198216.

The previous prime is 3213648396373. The next prime is 3213648396437. The reversal of 3213648396436 is 6346938463123.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1819784812036 + 1393863584400 = 1348994^2 + 1180620^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213648396437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401706049551 + ... + 401706049558.

Almost surely, 2^{3213648396436} is an apocalyptic number.

It is an amenable number.

3213648396436 is a deficient number, since it is larger than the sum of its proper divisors (2410236297334).

3213648396436 is a wasteful number, since it uses less digits than its factorization.

3213648396436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803412099113 (or 803412099111 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 58.

The spelling of 3213648396436 in words is "three trillion, two hundred thirteen billion, six hundred forty-eight million, three hundred ninety-six thousand, four hundred thirty-six".