2016138727439 has 2 divisors, whose sum is σ = 2016138727440. Its totient is φ = 2016138727438.

The previous prime is 2016138727373. The next prime is 2016138727483. The reversal of 2016138727439 is 9347278316102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2016138727439 - 2¹² = 2016138723343 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2016138727139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1008069363719 + 1008069363720.

It is an arithmetic number, because the mean of its divisors is an integer number (1008069363720).

Almost surely, 2^{2016138727439} is an apocalyptic number.

2016138727439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2016138727439 is an equidigital number, since it uses as much as digits as its factorization.

2016138727439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 2016138727439 in words is "two trillion, sixteen billion, one hundred thirty-eight million, seven hundred twenty-seven thousand, four hundred thirty-nine".