2731707341721 has 24 divisors (see below), whose sum is σ = 4029533483976. Its totient is φ = 1782650488320.

The previous prime is 2731707341717. The next prime is 2731707341747. The reversal of 2731707341721 is 1271437071372.

2731707341721 is a `hidden beast` number, since 2 + 73 + 170 + 7 + 341 + 72 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 57628803600 + 2674078538121 = 240060^2 + 1635261^2 .

It is not a de Polignac number, because 2731707341721 - 2² = 2731707341717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2731707341021) 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, 6406450 + ... + 6819531.

It is an arithmetic number, because the mean of its divisors is an integer number (167897228499).

Almost surely, 2^{2731707341721} is an apocalyptic number.

It is an amenable number.

2731707341721 is a deficient number, since it is larger than the sum of its proper divisors (1297826142255).

2731707341721 is a wasteful number, since it uses less digits than its factorization.

2731707341721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13226473 (or 13226470 counting only the distinct ones).

The product of its (nonzero) digits is 345744, while the sum is 45.

The spelling of 2731707341721 in words is "two trillion, seven hundred thirty-one billion, seven hundred seven million, three hundred forty-one thousand, seven hundred twenty-one".