27011728439 has 2 divisors, whose sum is σ = 27011728440. Its totient is φ = 27011728438.

The previous prime is 27011728411. The next prime is 27011728591. The reversal of 27011728439 is 93482711072.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27011728439 - 2¹² = 27011724343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27011728439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27011728739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13505864219 + 13505864220.

It is an arithmetic number, because the mean of its divisors is an integer number (13505864220).

Almost surely, 2^27011728439 is an apocalyptic number.

27011728439 is a deficient number, since it is larger than the sum of its proper divisors (1).

27011728439 is an equidigital number, since it uses as much as digits as its factorization.

27011728439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 27011728439 in words is "twenty-seven billion, eleven million, seven hundred twenty-eight thousand, four hundred thirty-nine".