11199749946 has 64 divisors (see below), whose sum is σ = 28889671680. Its totient is φ = 2808711360.

The previous prime is 11199749909. The next prime is 11199749969. The reversal of 11199749946 is 64994799111.

It is a self number, because there is not a number n which added to its sum of digits gives 11199749946.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 404566 + ... + 431361.

It is an arithmetic number, because the mean of its divisors is an integer number (451401120).

Almost surely, 2^11199749946 is an apocalyptic number.

11199749946 is an abundant number, since it is smaller than the sum of its proper divisors (17689921734).

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

11199749946 is a wasteful number, since it uses less digits than its factorization.

11199749946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835979.

The product of its digits is 4408992, while the sum is 60.

The spelling of 11199749946 in words is "eleven billion, one hundred ninety-nine million, seven hundred forty-nine thousand, nine hundred forty-six".