1725740722752 has 112 divisors (see below), whose sum is σ = 4589010766080. Its totient is φ = 572354408448.

The previous prime is 1725740722721. The next prime is 1725740722777. The reversal of 1725740722752 is 2572270475271.

It is a junction number, because it is equal to n+sod(n) for n = 1725740722695 and 1725740722704.

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 15 ways as a sum of consecutive naturals, for example, 63645774 + ... + 63672882.

Almost surely, 2^{1725740722752} is an apocalyptic number.

1725740722752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1725740722752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2294505383040).

1725740722752 is an abundant number, since it is smaller than the sum of its proper divisors (2863270043328).

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

1725740722752 is a wasteful number, since it uses less digits than its factorization.

1725740722752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28780 (or 28770 counting only the distinct ones).

The product of its (nonzero) digits is 3841600, while the sum is 51.

The spelling of 1725740722752 in words is "one trillion, seven hundred twenty-five billion, seven hundred forty million, seven hundred twenty-two thousand, seven hundred fifty-two".