3213648396387 has 32 divisors (see below), whose sum is σ = 5593296360960. Its totient is φ = 1797845254560.

The previous prime is 3213648396373. The next prime is 3213648396437. The reversal of 3213648396387 is 7836938463123.

3213648396387 is a `hidden beast` number, since 3 + 2 + 1 + 36 + 483 + 96 + 38 + 7 = 666.

It is not a de Polignac number, because 3213648396387 - 2¹⁸ = 3213648134243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3213648396367) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 416164023 + ... + 416171744.

It is an arithmetic number, because the mean of its divisors is an integer number (174790511280).

Almost surely, 2^{3213648396387} is an apocalyptic number.

3213648396387 is a deficient number, since it is larger than the sum of its proper divisors (2379647964573).

3213648396387 is a wasteful number, since it uses less digits than its factorization.

3213648396387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832335800 (or 832335794 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 63.

The spelling of 3213648396387 in words is "three trillion, two hundred thirteen billion, six hundred forty-eight million, three hundred ninety-six thousand, three hundred eighty-seven".