1720244420271 has 24 divisors (see below), whose sum is σ = 2676005704736. Its totient is φ = 1058584282560.

The previous prime is 1720244420269. The next prime is 1720244420327.

1720244420271 is a `hidden beast` number, since 1 + 7 + 2 + 0 + 2 + 444 + 202 + 7 + 1 = 666.

1720244420271 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1720244420271 - 2¹ = 1720244420269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720244420231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4871286 + ... + 5212476.

Almost surely, 2^{1720244420271} is an apocalyptic number.

1720244420271 is a deficient number, since it is larger than the sum of its proper divisors (955761284465).

1720244420271 is a wasteful number, since it uses less digits than its factorization.

1720244420271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384303 (or 384300 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The spelling of 1720244420271 in words is "one trillion, seven hundred twenty billion, two hundred forty-four million, four hundred twenty thousand, two hundred seventy-one".