28203245567 has 8 divisors (see below), whose sum is σ = 32348644896. Its totient is φ = 24086937312.

The previous prime is 28203245509. The next prime is 28203245569. The reversal of 28203245567 is 76554230282.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28203245567 - 2¹² = 28203241471 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 (28203245569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7270688 + ... + 7274565.

It is an arithmetic number, because the mean of its divisors is an integer number (4043580612).

Almost surely, 2^28203245567 is an apocalyptic number.

28203245567 is a deficient number, since it is larger than the sum of its proper divisors (4145399329).

28203245567 is a wasteful number, since it uses less digits than its factorization.

28203245567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14545537.

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 28203245567 in words is "twenty-eight billion, two hundred three million, two hundred forty-five thousand, five hundred sixty-seven".