11109994994 has 16 divisors (see below), whose sum is σ = 19047771456. Its totient is φ = 4760910000.

The previous prime is 11109994993. The next prime is 11109994999. The reversal of 11109994994 is 49949990111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11109994993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109229 + ... + 184799.

It is an arithmetic number, because the mean of its divisors is an integer number (1190485716).

Almost surely, 2^11109994994 is an apocalyptic number.

11109994994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11109994994 is a deficient number, since it is larger than the sum of its proper divisors (7937776462).

11109994994 is a wasteful number, since it uses less digits than its factorization.

11109994994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86081.

The product of its (nonzero) digits is 944784, while the sum is 56.

The spelling of 11109994994 in words is "eleven billion, one hundred nine million, nine hundred ninety-four thousand, nine hundred ninety-four".