1722370242643 has 8 divisors (see below), whose sum is σ = 1752212088000. Its totient is φ = 1692550035048.

The previous prime is 1722370242601. The next prime is 1722370242683. The reversal of 1722370242643 is 3462420732271.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1722370242643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1722370242643.

It is not an unprimeable number, because it can be changed into a prime (1722370242683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5248821 + ... + 5567302.

It is an arithmetic number, because the mean of its divisors is an integer number (219026511000).

Almost surely, 2^{1722370242643} is an apocalyptic number.

1722370242643 is a deficient number, since it is larger than the sum of its proper divisors (29841845357).

1722370242643 is a wasteful number, since it uses less digits than its factorization.

1722370242643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10818881.

The product of its (nonzero) digits is 677376, while the sum is 43.

The spelling of 1722370242643 in words is "one trillion, seven hundred twenty-two billion, three hundred seventy million, two hundred forty-two thousand, six hundred forty-three".