11751451227 has 12 divisors (see below), whose sum is σ = 17867703880. Its totient is φ = 7421969088.

The previous prime is 11751451207. The next prime is 11751451279. The reversal of 11751451227 is 72215415711.

It is a happy number.

11751451227 is a `hidden beast` number, since 1 + 17 + 514 + 5 + 122 + 7 = 666.

It is not a de Polignac number, because 11751451227 - 2¹⁸ = 11751189083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11751451191 and 11751451200.

It is not an unprimeable number, because it can be changed into a prime (11751451207) 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 11 ways as a sum of consecutive naturals, for example, 34360798 + ... + 34361139.

Almost surely, 2^11751451227 is an apocalyptic number.

11751451227 is a deficient number, since it is larger than the sum of its proper divisors (6116252653).

11751451227 is a wasteful number, since it uses less digits than its factorization.

11751451227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68721962 (or 68721959 counting only the distinct ones).

The product of its digits is 19600, while the sum is 36.

Adding to 11751451227 its reverse (72215415711), we get a palindrome (83966866938).

The spelling of 11751451227 in words is "eleven billion, seven hundred fifty-one million, four hundred fifty-one thousand, two hundred twenty-seven".