1722704072272 has 10 divisors (see below), whose sum is σ = 3337739140058. Its totient is φ = 861352036128.

The previous prime is 1722704072269. The next prime is 1722704072273. The reversal of 1722704072272 is 2722704072271.

It can be written as a sum of positive squares in only one way, i.e., 863197079056 + 859506993216 = 929084^2 + 927096^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1722704072273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53834502243 + ... + 53834502274.

Almost surely, 2^{1722704072272} is an apocalyptic number.

It is an amenable number.

1722704072272 is a deficient number, since it is larger than the sum of its proper divisors (1615035067786).

1722704072272 is a wasteful number, since it uses less digits than its factorization.

1722704072272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107669004525 (or 107669004519 counting only the distinct ones).

The product of its (nonzero) digits is 307328, while the sum is 43.

Subtracting 1722704072272 from its reverse (2722704072271), we obtain a palindrome (999999999999).

The spelling of 1722704072272 in words is "one trillion, seven hundred twenty-two billion, seven hundred four million, seventy-two thousand, two hundred seventy-two".