11110638009 has 4 divisors (see below), whose sum is σ = 14814184016. Its totient is φ = 7407092004.

The previous prime is 11110637983. The next prime is 11110638013. The reversal of 11110638009 is 90083601111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11110638009 - 2⁵ = 11110637977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11110638029) 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, 1851772999 + ... + 1851773004.

It is an arithmetic number, because the mean of its divisors is an integer number (3703546004).

Almost surely, 2^11110638009 is an apocalyptic number.

It is an amenable number.

11110638009 is a deficient number, since it is larger than the sum of its proper divisors (3703546007).

11110638009 is an equidigital number, since it uses as much as digits as its factorization.

11110638009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703546006.

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 11110638009 in words is "eleven billion, one hundred ten million, six hundred thirty-eight thousand, nine".