3221278594968 has 64 divisors (see below), whose sum is σ = 9204040949760. Its totient is φ = 920326530816.

The previous prime is 3221278594967. The next prime is 3221278594987. The reversal of 3221278594968 is 8694958721223.

It is a super-3 number, since 3×3221278594968³ (a number of 39 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3221278594899 and 3221278594908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221278594967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3719721 + ... + 4503207.

It is an arithmetic number, because the mean of its divisors is an integer number (143813139840).

Almost surely, 2^{3221278594968} is an apocalyptic number.

It is an amenable number.

3221278594968 is an abundant number, since it is smaller than the sum of its proper divisors (5982762354792).

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

3221278594968 is a wasteful number, since it uses less digits than its factorization.

3221278594968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807976 (or 807972 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 66.

The spelling of 3221278594968 in words is "three trillion, two hundred twenty-one billion, two hundred seventy-eight million, five hundred ninety-four thousand, nine hundred sixty-eight".