27773652865 has 16 divisors (see below), whose sum is σ = 38102682240. Its totient is φ = 19038240000.

The previous prime is 27773652833. The next prime is 27773652869. The reversal of 27773652865 is 56825637772.

It is not a de Polignac number, because 27773652865 - 2⁵ = 27773652833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27773652869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32136 + ... + 237865.

It is an arithmetic number, because the mean of its divisors is an integer number (2381417640).

Almost surely, 2^27773652865 is an apocalyptic number.

It is an amenable number.

27773652865 is a deficient number, since it is larger than the sum of its proper divisors (10329029375).

27773652865 is a wasteful number, since it uses less digits than its factorization.

27773652865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272952.

The product of its digits is 29635200, while the sum is 58.

The spelling of 27773652865 in words is "twenty-seven billion, seven hundred seventy-three million, six hundred fifty-two thousand, eight hundred sixty-five".