27765013777763 has 4 divisors (see below), whose sum is σ = 27765036307008. Its totient is φ = 27764991248520.

The previous prime is 27765013777717. The next prime is 27765013777789. The reversal of 27765013777763 is 36777731056772.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27765013777763 - 2¹⁴ = 27765013761379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27765013777693 and 27765013777702.

It is not an unprimeable number, because it can be changed into a prime (27765013777063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9302048 + ... + 11918813.

It is an arithmetic number, because the mean of its divisors is an integer number (6941259076752).

Almost surely, 2^{27765013777763} is an apocalyptic number.

27765013777763 is a deficient number, since it is larger than the sum of its proper divisors (22529245).

27765013777763 is a wasteful number, since it uses less digits than its factorization.

27765013777763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22529244.

The product of its (nonzero) digits is 381182760, while the sum is 68.

The spelling of 27765013777763 in words is "twenty-seven trillion, seven hundred sixty-five billion, thirteen million, seven hundred seventy-seven thousand, seven hundred sixty-three".