28213265167 has 4 divisors (see below), whose sum is σ = 29698173880. Its totient is φ = 26728356456.

The previous prime is 28213265149. The next prime is 28213265191. The reversal of 28213265167 is 76156231282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28213265167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28213265117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742454328 + ... + 742454365.

It is an arithmetic number, because the mean of its divisors is an integer number (7424543470).

Almost surely, 2^28213265167 is an apocalyptic number.

28213265167 is a deficient number, since it is larger than the sum of its proper divisors (1484908713).

28213265167 is a wasteful number, since it uses less digits than its factorization.

28213265167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484908712.

The product of its digits is 241920, while the sum is 43.

The spelling of 28213265167 in words is "twenty-eight billion, two hundred thirteen million, two hundred sixty-five thousand, one hundred sixty-seven".