11128952617 has 2 divisors, whose sum is σ = 11128952618. Its totient is φ = 11128952616.

The previous prime is 11128952557. The next prime is 11128952633. The reversal of 11128952617 is 71625982111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6460783641 + 4668168976 = 80379^2 + 68324^2 .

It is an emirp because it is prime and its reverse (71625982111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11128952617 is a prime.

It is a super-2 number, since 2×11128952617² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11128952677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5564476308 + 5564476309.

It is an arithmetic number, because the mean of its divisors is an integer number (5564476309).

Almost surely, 2^11128952617 is an apocalyptic number.

It is an amenable number.

11128952617 is a deficient number, since it is larger than the sum of its proper divisors (1).

11128952617 is an equidigital number, since it uses as much as digits as its factorization.

11128952617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 43.

The spelling of 11128952617 in words is "eleven billion, one hundred twenty-eight million, nine hundred fifty-two thousand, six hundred seventeen".