11129724928 has 56 divisors (see below), whose sum is σ = 25437949632. Its totient is φ = 4769857536.

The previous prime is 11129724913. The next prime is 11129724941. The reversal of 11129724928 is 82942792111.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39700 + ... + 154387.

Almost surely, 2^11129724928 is an apocalyptic number.

It is an amenable number.

11129724928 is an abundant number, since it is smaller than the sum of its proper divisors (14308224704).

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

11129724928 is an frugal number, since it uses more digits than its factorization.

11129724928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194120 (or 194096 counting only the distinct ones).

The product of its digits is 145152, while the sum is 46.

The spelling of 11129724928 in words is "eleven billion, one hundred twenty-nine million, seven hundred twenty-four thousand, nine hundred twenty-eight".