11648863646 has 8 divisors (see below), whose sum is σ = 19969480560. Its totient is φ = 4992370128.

The previous prime is 11648863643. The next prime is 11648863663. The reversal of 11648863646 is 64636884611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11648863643) 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 3 ways as a sum of consecutive naturals, for example, 416030831 + ... + 416030858.

It is an arithmetic number, because the mean of its divisors is an integer number (2496185070).

Almost surely, 2^11648863646 is an apocalyptic number.

11648863646 is a deficient number, since it is larger than the sum of its proper divisors (8320616914).

11648863646 is an equidigital number, since it uses as much as digits as its factorization.

11648863646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832061698.

The product of its digits is 3981312, while the sum is 53.

The spelling of 11648863646 in words is "eleven billion, six hundred forty-eight million, eight hundred sixty-three thousand, six hundred forty-six".