2731713542381 has 2 divisors, whose sum is σ = 2731713542382. Its totient is φ = 2731713542380.

The previous prime is 2731713542377. The next prime is 2731713542429. The reversal of 2731713542381 is 1832453171372.

2731713542381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2187615525481 + 544098016900 = 1479059^2 + 737630^2 .

It is a cyclic number.

It is not a de Polignac number, because 2731713542381 - 2² = 2731713542377 is a prime.

It is a super-2 number, since 2×2731713542381² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2731713542081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365856771190 + 1365856771191.

It is an arithmetic number, because the mean of its divisors is an integer number (1365856771191).

Almost surely, 2^{2731713542381} is an apocalyptic number.

It is an amenable number.

2731713542381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2731713542381 is an equidigital number, since it uses as much as digits as its factorization.

2731713542381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 47.

The spelling of 2731713542381 in words is "two trillion, seven hundred thirty-one billion, seven hundred thirteen million, five hundred forty-two thousand, three hundred eighty-one".