11228400617 has 6 divisors (see below), whose sum is σ = 13061608938. Its totient is φ = 9624343344.

The previous prime is 11228400551. The next prime is 11228400629. The reversal of 11228400617 is 71600482211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10142302681 + 1086097936 = 100709^2 + 32956^2 .

It is not a de Polignac number, because 11228400617 - 2⁸ = 11228400361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11228400647) 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 5 ways as a sum of consecutive naturals, for example, 114575468 + ... + 114575565.

It is an arithmetic number, because the mean of its divisors is an integer number (2176934823).

Almost surely, 2^11228400617 is an apocalyptic number.

It is an amenable number.

11228400617 is a deficient number, since it is larger than the sum of its proper divisors (1833208321).

11228400617 is an equidigital number, since it uses as much as digits as its factorization.

11228400617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229151047 (or 229151040 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

Adding to 11228400617 its reverse (71600482211), we get a palindrome (82828882828).

The spelling of 11228400617 in words is "eleven billion, two hundred twenty-eight million, four hundred thousand, six hundred seventeen".