3221435942644 has 6 divisors (see below), whose sum is σ = 5637512899634. Its totient is φ = 1610717971320.

The previous prime is 3221435942617. The next prime is 3221435942677. The reversal of 3221435942644 is 4462495341223.

3221435942644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2962660252644 + 258775690000 = 1721238^2 + 508700^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402679492827 + ... + 402679492834.

Almost surely, 2^{3221435942644} is an apocalyptic number.

It is an amenable number.

3221435942644 is a deficient number, since it is larger than the sum of its proper divisors (2416076956990).

3221435942644 is a wasteful number, since it uses less digits than its factorization.

3221435942644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805358985665 (or 805358985663 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 49.

The spelling of 3221435942644 in words is "three trillion, two hundred twenty-one billion, four hundred thirty-five million, nine hundred forty-two thousand, six hundred forty-four".