11647576361 has 12 divisors (see below), whose sum is σ = 11820338292. Its totient is φ = 11476437504.

The previous prime is 11647576301. The next prime is 11647576373. The reversal of 11647576361 is 16367574611.

It can be written as a sum of positive squares in 2 ways, for example, as 4749277225 + 6898299136 = 68915^2 + 83056^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11647576361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11647576301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3619025 + ... + 3622241.

It is an arithmetic number, because the mean of its divisors is an integer number (985028191).

Almost surely, 2^11647576361 is an apocalyptic number.

It is an amenable number.

11647576361 is a deficient number, since it is larger than the sum of its proper divisors (172761931).

11647576361 is an equidigital number, since it uses as much as digits as its factorization.

11647576361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688 (or 3509 counting only the distinct ones).

The product of its digits is 635040, while the sum is 47.

The spelling of 11647576361 in words is "eleven billion, six hundred forty-seven million, five hundred seventy-six thousand, three hundred sixty-one".