2731712731427 has 4 divisors (see below), whose sum is σ = 2731716623160. Its totient is φ = 2731708839696.

The previous prime is 2731712731409. The next prime is 2731712731459. The reversal of 2731712731427 is 7241372171372.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2731712731427 - 2²⁰ = 2731711682851 is a prime.

It is a super-2 number, since 2×2731712731427² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2731712731127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567533 + ... + 2405310.

It is an arithmetic number, because the mean of its divisors is an integer number (682929155790).

Almost surely, 2^{2731712731427} is an apocalyptic number.

2731712731427 is a deficient number, since it is larger than the sum of its proper divisors (3891733).

2731712731427 is an equidigital number, since it uses as much as digits as its factorization.

2731712731427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3891732.

The product of its digits is 691488, while the sum is 47.

The spelling of 2731712731427 in words is "two trillion, seven hundred thirty-one billion, seven hundred twelve million, seven hundred thirty-one thousand, four hundred twenty-seven".