27765015127693 has 2 divisors, whose sum is σ = 27765015127694. Its totient is φ = 27765015127692.

The previous prime is 27765015127691. The next prime is 27765015127709. The reversal of 27765015127693 is 39672151056772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25358042848329 + 2406972279364 = 5035677^2 + 1551442^2 .

It is a cyclic number.

It is not a de Polignac number, because 27765015127693 - 2¹ = 27765015127691 is a prime.

It is a super-2 number, since 2×27765015127693² (a number of 28 digits) contains 22 as substring.

Together with 27765015127691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27765015127691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13882507563846 + 13882507563847.

It is an arithmetic number, because the mean of its divisors is an integer number (13882507563847).

Almost surely, 2^{27765015127693} is an apocalyptic number.

It is an amenable number.

27765015127693 is a deficient number, since it is larger than the sum of its proper divisors (1).

27765015127693 is an equidigital number, since it uses as much as digits as its factorization.

27765015127693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33339600, while the sum is 61.

The spelling of 27765015127693 in words is "twenty-seven trillion, seven hundred sixty-five billion, fifteen million, one hundred twenty-seven thousand, six hundred ninety-three".