3221435942645 has 8 divisors (see below), whose sum is σ = 3865753672704. Its totient is φ = 2577128393104.

The previous prime is 3221435942617. The next prime is 3221435942677. The reversal of 3221435942645 is 5462495341223.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3221435942645 - 2⁶ = 3221435942581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221435942593 and 3221435942602.

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, 1830749 + ... + 3129618.

It is an arithmetic number, because the mean of its divisors is an integer number (483219209088).

Almost surely, 2^{3221435942645} is an apocalyptic number.

It is an amenable number.

3221435942645 is a deficient number, since it is larger than the sum of its proper divisors (644317730059).

3221435942645 is a wasteful number, since it uses less digits than its factorization.

3221435942645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090259.

The product of its digits is 6220800, while the sum is 50.

The spelling of 3221435942645 in words is "three trillion, two hundred twenty-one billion, four hundred thirty-five million, nine hundred forty-two thousand, six hundred forty-five".