11144687928 has 32 divisors (see below), whose sum is σ = 30394604160. Its totient is φ = 3377178080.

The previous prime is 11144687867. The next prime is 11144687999. The reversal of 11144687928 is 82978644111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21107100 + ... + 21107627.

It is an arithmetic number, because the mean of its divisors is an integer number (949831380).

Almost surely, 2^11144687928 is an apocalyptic number.

It is an amenable number.

11144687928 is an abundant number, since it is smaller than the sum of its proper divisors (19249916232).

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

11144687928 is a wasteful number, since it uses less digits than its factorization.

11144687928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42214747 (or 42214743 counting only the distinct ones).

The product of its digits is 774144, while the sum is 51.

The spelling of 11144687928 in words is "eleven billion, one hundred forty-four million, six hundred eighty-seven thousand, nine hundred twenty-eight".