1728709352212 has 12 divisors (see below), whose sum is σ = 3184464596320. Its totient is φ = 818862324696.

The previous prime is 1728709352189. The next prime is 1728709352257. The reversal of 1728709352212 is 2122539078271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11373087768 + ... + 11373087919.

Almost surely, 2^{1728709352212} is an apocalyptic number.

It is an amenable number.

1728709352212 is a deficient number, since it is larger than the sum of its proper divisors (1455755244108).

1728709352212 is a wasteful number, since it uses less digits than its factorization.

1728709352212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22746175710 (or 22746175708 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 1728709352212 in words is "one trillion, seven hundred twenty-eight billion, seven hundred nine million, three hundred fifty-two thousand, two hundred twelve".