11285277697 has 4 divisors (see below), whose sum is σ = 11412078660. Its totient is φ = 11158476736.

The previous prime is 11285277667. The next prime is 11285277749. The reversal of 11285277697 is 79677258211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5641662321 + 5643615376 = 75111^2 + 75124^2 .

It is a cyclic number.

It is not a de Polignac number, because 11285277697 - 2¹⁹ = 11284753409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11285277667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63400348 + ... + 63400525.

It is an arithmetic number, because the mean of its divisors is an integer number (2853019665).

Almost surely, 2^11285277697 is an apocalyptic number.

It is an amenable number.

11285277697 is a deficient number, since it is larger than the sum of its proper divisors (126800963).

11285277697 is an equidigital number, since it uses as much as digits as its factorization.

11285277697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126800962.

The product of its digits is 2963520, while the sum is 55.

The spelling of 11285277697 in words is "eleven billion, two hundred eighty-five million, two hundred seventy-seven thousand, six hundred ninety-seven".