3219290000644 has 9 divisors (see below), whose sum is σ = 5633763780967. Its totient is φ = 1609643206084.

The previous prime is 3219290000617. The next prime is 3219290000659. The reversal of 3219290000644 is 4460000929123.

The square root of 3219290000644 is 1794238.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3219290000597 and 3219290000606.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3139917 + ... + 4037035.

Almost surely, 2^{3219290000644} is an apocalyptic number.

3219290000644 is the 1794238-th square number.

It is an amenable number.

3219290000644 is a deficient number, since it is larger than the sum of its proper divisors (2414473780323).

3219290000644 is an frugal number, since it uses more digits than its factorization.

3219290000644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794242 (or 897121 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

Adding to 3219290000644 its reverse (4460000929123), we get a palindrome (7679290929767).

The spelling of 3219290000644 in words is "three trillion, two hundred nineteen billion, two hundred ninety million, six hundred forty-four", and thus it is an aban number.