1722913879072 has 12 divisors (see below), whose sum is σ = 3391986699486. Its totient is φ = 861456939520.

The previous prime is 1722913879061. The next prime is 1722913879103. The reversal of 1722913879072 is 2709783192271.

It can be written as a sum of positive squares in only one way, i.e., 1217853502096 + 505060376976 = 1103564^2 + 710676^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1722913878998 and 1722913879016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26920529329 + ... + 26920529392.

Almost surely, 2^{1722913879072} is an apocalyptic number.

It is an amenable number.

1722913879072 is a deficient number, since it is larger than the sum of its proper divisors (1669072820414).

1722913879072 is an equidigital number, since it uses as much as digits as its factorization.

1722913879072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53841058731 (or 53841058723 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 58.

The spelling of 1722913879072 in words is "one trillion, seven hundred twenty-two billion, nine hundred thirteen million, eight hundred seventy-nine thousand, seventy-two".