28110604667 has 4 divisors (see below), whose sum is σ = 28136091360. Its totient is φ = 28085117976.

The previous prime is 28110604663. The next prime is 28110604679. The reversal of 28110604667 is 76640601182.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76640601182 = 2 ⋅38320300591.

It is a cyclic number.

It is not a de Polignac number, because 28110604667 - 2² = 28110604663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28110604663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12741692 + ... + 12743897.

It is an arithmetic number, because the mean of its divisors is an integer number (7034022840).

Almost surely, 2^28110604667 is an apocalyptic number.

28110604667 is a deficient number, since it is larger than the sum of its proper divisors (25486693).

28110604667 is a wasteful number, since it uses less digits than its factorization.

28110604667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25486692.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 28110604667 in words is "twenty-eight billion, one hundred ten million, six hundred four thousand, six hundred sixty-seven".