28667008616 has 16 divisors (see below), whose sum is σ = 54272493600. Its totient is φ = 14194343664.

The previous prime is 28667008607. The next prime is 28667008649. The reversal of 28667008616 is 61680076682.

It is a happy number.

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, 17394206 + ... + 17395853.

It is an arithmetic number, because the mean of its divisors is an integer number (3392030850).

Almost surely, 2^28667008616 is an apocalyptic number.

It is an amenable number.

28667008616 is a deficient number, since it is larger than the sum of its proper divisors (25605484984).

28667008616 is a wasteful number, since it uses less digits than its factorization.

28667008616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34790168 (or 34790164 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 28667008616 in words is "twenty-eight billion, six hundred sixty-seven million, eight thousand, six hundred sixteen".