1712773650221 has 8 divisors (see below), whose sum is σ = 1742557016088. Its totient is φ = 1683045288000.

The previous prime is 1712773650197. The next prime is 1712773650223. The reversal of 1712773650221 is 1220563772171.

It can be written as a sum of positive squares in 4 ways, for example, as 11027310121 + 1701746340100 = 105011^2 + 1304510^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1712773650221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1712773650223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13688090 + ... + 13812651.

It is an arithmetic number, because the mean of its divisors is an integer number (217819627011).

Almost surely, 2^{1712773650221} is an apocalyptic number.

It is an amenable number.

1712773650221 is a deficient number, since it is larger than the sum of its proper divisors (29783365867).

1712773650221 is a wasteful number, since it uses less digits than its factorization.

1712773650221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27501823.

The product of its (nonzero) digits is 246960, while the sum is 44.

The spelling of 1712773650221 in words is "one trillion, seven hundred twelve billion, seven hundred seventy-three million, six hundred fifty thousand, two hundred twenty-one".