11647022287 has 4 divisors (see below), whose sum is σ = 12260023480. Its totient is φ = 11034021096.

The previous prime is 11647022273. The next prime is 11647022297. The reversal of 11647022287 is 78222074611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78222074611 = 937 ⋅83481403.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11647022287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11647022297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306500568 + ... + 306500605.

It is an arithmetic number, because the mean of its divisors is an integer number (3065005870).

Almost surely, 2^11647022287 is an apocalyptic number.

11647022287 is a deficient number, since it is larger than the sum of its proper divisors (613001193).

11647022287 is an equidigital number, since it uses as much as digits as its factorization.

11647022287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613001192.

The product of its (nonzero) digits is 75264, while the sum is 40.

Adding to 11647022287 its reverse (78222074611), we get a palindrome (89869096898).

The spelling of 11647022287 in words is "eleven billion, six hundred forty-seven million, twenty-two thousand, two hundred eighty-seven".