1722668512 has 48 divisors (see below), whose sum is σ = 3511976832. Its totient is φ = 830914560.

The previous prime is 1722668503. The next prime is 1722668539. The reversal of 1722668512 is 2158662271.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 331728 + ... + 336880.

It is an arithmetic number, because the mean of its divisors is an integer number (73166184).

Almost surely, 2^1722668512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1722668512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1755988416).

1722668512 is an abundant number, since it is smaller than the sum of its proper divisors (1789308320).

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

1722668512 is a wasteful number, since it uses less digits than its factorization.

1722668512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5531 (or 5523 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 1722668512 is about 41505.0420069659. The cubic root of 1722668512 is about 1198.7645878264.

The spelling of 1722668512 in words is "one billion, seven hundred twenty-two million, six hundred sixty-eight thousand, five hundred twelve".