2731321426049 has 2 divisors, whose sum is σ = 2731321426050. Its totient is φ = 2731321426048.

The previous prime is 2731321426019. The next prime is 2731321426051. The reversal of 2731321426049 is 9406241231372.

It is a happy number.

2731321426049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2090149690225 + 641171735824 = 1445735^2 + 800732^2 .

It is a cyclic number.

It is not a de Polignac number, because 2731321426049 - 2¹² = 2731321421953 is a prime.

Together with 2731321426051, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2731321426019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365660713024 + 1365660713025.

It is an arithmetic number, because the mean of its divisors is an integer number (1365660713025).

Almost surely, 2^{2731321426049} is an apocalyptic number.

It is an amenable number.

2731321426049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2731321426049 is an equidigital number, since it uses as much as digits as its factorization.

2731321426049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 2731321426049 in words is "two trillion, seven hundred thirty-one billion, three hundred twenty-one million, four hundred twenty-six thousand, forty-nine".