1723803728640 has 144 divisors (see below), whose sum is σ = 6291883707648. Its totient is φ = 394012274688.

The previous prime is 1723803728597. The next prime is 1723803728653. The reversal of 1723803728640 is 468273083271.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32037922 + ... + 32091681.

Almost surely, 2^{1723803728640} is an apocalyptic number.

1723803728640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1723803728640 is an abundant number, since it is smaller than the sum of its proper divisors (4568079979008).

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

1723803728640 is an equidigital number, since it uses as much as digits as its factorization.

1723803728640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64129634 (or 64129620 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 1723803728640 in words is "one trillion, seven hundred twenty-three billion, eight hundred three million, seven hundred twenty-eight thousand, six hundred forty".