3213648396340 has 24 divisors (see below), whose sum is σ = 6750627597000. Its totient is φ = 1285084889088.

The previous prime is 3213648396319. The next prime is 3213648396341. The reversal of 3213648396340 is 436938463123.

It can be written as a sum of positive squares in 4 ways, for example, as 678185764 + 3212970210576 = 26042^2 + 1792476^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213648396341) 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 in 7 ways as a sum of consecutive naturals, for example, 23333965 + ... + 23471284.

It is an arithmetic number, because the mean of its divisors is an integer number (281276149875).

Almost surely, 2^{3213648396340} is an apocalyptic number.

It is an amenable number.

3213648396340 is an abundant number, since it is smaller than the sum of its proper divisors (3536979200660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3213648396340 is a wasteful number, since it uses less digits than its factorization.

3213648396340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46808691 (or 46808689 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 52.

The spelling of 3213648396340 in words is "three trillion, two hundred thirteen billion, six hundred forty-eight million, three hundred ninety-six thousand, three hundred forty".