11648436677 has 4 divisors (see below), whose sum is σ = 11648966700. Its totient is φ = 11647906656.

The previous prime is 11648436643. The next prime is 11648436689. The reversal of 11648436677 is 77663484611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2069704036 + 9578732641 = 45494^2 + 97871^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11648436677 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 (11648436637) 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, 230552 + ... + 276497.

It is an arithmetic number, because the mean of its divisors is an integer number (2912241675).

Almost surely, 2^11648436677 is an apocalyptic number.

It is an amenable number.

11648436677 is a deficient number, since it is larger than the sum of its proper divisors (530023).

11648436677 is an equidigital number, since it uses as much as digits as its factorization.

11648436677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530022.

The product of its digits is 4064256, while the sum is 53.

The spelling of 11648436677 in words is "eleven billion, six hundred forty-eight million, four hundred thirty-six thousand, six hundred seventy-seven".