11648433845 has 4 divisors (see below), whose sum is σ = 13978120620. Its totient is φ = 9318747072.

The previous prime is 11648433821. The next prime is 11648433877. The reversal of 11648433845 is 54833484611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54833484611 = 107 ⋅512462473.

It can be written as a sum of positive squares in 2 ways, for example, as 1714125604 + 9934308241 = 41402^2 + 99671^2 .

It is a cyclic number.

It is not a de Polignac number, because 11648433845 - 2¹⁰ = 11648432821 is a prime.

It is a super-2 number, since 2×11648433845² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11648433845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1164843380 + ... + 1164843389.

It is an arithmetic number, because the mean of its divisors is an integer number (3494530155).

Almost surely, 2^11648433845 is an apocalyptic number.

It is an amenable number.

11648433845 is a deficient number, since it is larger than the sum of its proper divisors (2329686775).

11648433845 is an equidigital number, since it uses as much as digits as its factorization.

11648433845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329686774.

The product of its digits is 1105920, while the sum is 47.

The spelling of 11648433845 in words is "eleven billion, six hundred forty-eight million, four hundred thirty-three thousand, eight hundred forty-five".