27706651541 has 2 divisors, whose sum is σ = 27706651542. Its totient is φ = 27706651540.

The previous prime is 27706651507. The next prime is 27706651579. The reversal of 27706651541 is 14515660772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26161768516 + 1544883025 = 161746^2 + 39305^2 .

It is a cyclic number.

It is not a de Polignac number, because 27706651541 - 2¹⁸ = 27706389397 is a prime.

It is a super-2 number, since 2×27706651541² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27706651492 and 27706651501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27702651541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13853325770 + 13853325771.

It is an arithmetic number, because the mean of its divisors is an integer number (13853325771).

Almost surely, 2^27706651541 is an apocalyptic number.

It is an amenable number.

27706651541 is a deficient number, since it is larger than the sum of its proper divisors (1).

27706651541 is an equidigital number, since it uses as much as digits as its factorization.

27706651541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 27706651541 in words is "twenty-seven billion, seven hundred six million, six hundred fifty-one thousand, five hundred forty-one".