3218654221368 has 32 divisors (see below), whose sum is σ = 8306204444160. Its totient is φ = 1038275555040.

The previous prime is 3218654221351. The next prime is 3218654221373. The reversal of 3218654221368 is 8631224568123.

It is a self number, because there is not a number n which added to its sum of digits gives 3218654221368.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2163073330 + ... + 2163074817.

It is an arithmetic number, because the mean of its divisors is an integer number (259568888880).

Almost surely, 2^{3218654221368} is an apocalyptic number.

It is an amenable number.

3218654221368 is an abundant number, since it is smaller than the sum of its proper divisors (5087550222792).

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

3218654221368 is a wasteful number, since it uses less digits than its factorization.

3218654221368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4326148187 (or 4326148183 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 51.

The spelling of 3218654221368 in words is "three trillion, two hundred eighteen billion, six hundred fifty-four million, two hundred twenty-one thousand, three hundred sixty-eight".