11197439994 has 32 divisors (see below), whose sum is σ = 24125379264. Its totient is φ = 3444249600.

The previous prime is 11197439989. The next prime is 11197440019. The reversal of 11197439994 is 49993479111.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 237594 + ... + 280794.

It is an arithmetic number, because the mean of its divisors is an integer number (753918102).

Almost surely, 2^11197439994 is an apocalyptic number.

11197439994 is an abundant number, since it is smaller than the sum of its proper divisors (12927939270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11197439994 is a wasteful number, since it uses less digits than its factorization.

11197439994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46542.

The product of its digits is 2204496, while the sum is 57.

The spelling of 11197439994 in words is "eleven billion, one hundred ninety-seven million, four hundred thirty-nine thousand, nine hundred ninety-four".