11643049815 has 8 divisors (see below), whose sum is σ = 18628879728. Its totient is φ = 6209626560.

The previous prime is 11643049813. The next prime is 11643049823. The reversal of 11643049815 is 51894034611.

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

It is not a de Polignac number, because 11643049815 - 2¹ = 11643049813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11643049813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388101646 + ... + 388101675.

It is an arithmetic number, because the mean of its divisors is an integer number (2328609966).

Almost surely, 2^11643049815 is an apocalyptic number.

11643049815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11643049815 is a deficient number, since it is larger than the sum of its proper divisors (6985829913).

11643049815 is an equidigital number, since it uses as much as digits as its factorization.

11643049815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776203329.

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 11643049815 in words is "eleven billion, six hundred forty-three million, forty-nine thousand, eight hundred fifteen".