1720730227446 has 12 divisors (see below), whose sum is σ = 3728248826172. Its totient is φ = 573576742476.

The previous prime is 1720730227441. The next prime is 1720730227453. The reversal of 1720730227446 is 6447220370271.

1720730227446 is a `hidden beast` number, since 1 + 72 + 0 + 7 + 302 + 274 + 4 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720730227441) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 47798061856 + ... + 47798061891.

It is an arithmetic number, because the mean of its divisors is an integer number (310687402181).

Almost surely, 2^{1720730227446} is an apocalyptic number.

1720730227446 is an abundant number, since it is smaller than the sum of its proper divisors (2007518598726).

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

1720730227446 is a wasteful number, since it uses less digits than its factorization.

1720730227446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95596123755 (or 95596123752 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 45.

The spelling of 1720730227446 in words is "one trillion, seven hundred twenty billion, seven hundred thirty million, two hundred twenty-seven thousand, four hundred forty-six".