28667558111000 has 32 divisors (see below), whose sum is σ = 67082085982080. Its totient is φ = 11467023244000.

The previous prime is 28667558110991. The next prime is 28667558111047. The reversal of 28667558111000 is 11185576682.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a self number, because there is not a number n which added to its sum of digits gives 28667558111000.

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, 14333778056 + ... + 14333780055.

It is an arithmetic number, because the mean of its divisors is an integer number (2096315186940).

Almost surely, 2^{28667558111000} is an apocalyptic number.

28667558111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28667558111000 is an abundant number, since it is smaller than the sum of its proper divisors (38414527871080).

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

28667558111000 is a wasteful number, since it uses less digits than its factorization.

28667558111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28667558132 (or 28667558118 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 50.

The spelling of 28667558111000 in words is "twenty-eight trillion, six hundred sixty-seven billion, five hundred fifty-eight million, one hundred eleven thousand".