27421105323727 has 2 divisors, whose sum is σ = 27421105323728. Its totient is φ = 27421105323726.

The previous prime is 27421105323691. The next prime is 27421105323737. The reversal of 27421105323727 is 72732350112472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27421105323727 - 2²⁷ = 27420971105999 is a prime.

It is a super-3 number, since 3×27421105323727³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27421105323737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13710552661863 + 13710552661864.

It is an arithmetic number, because the mean of its divisors is an integer number (13710552661864).

Almost surely, 2^{27421105323727} is an apocalyptic number.

27421105323727 is a deficient number, since it is larger than the sum of its proper divisors (1).

27421105323727 is an equidigital number, since it uses as much as digits as its factorization.

27421105323727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 987840, while the sum is 46.

The spelling of 27421105323727 in words is "twenty-seven trillion, four hundred twenty-one billion, one hundred five million, three hundred twenty-three thousand, seven hundred twenty-seven".