28786324467 has 8 divisors (see below), whose sum is σ = 38393098240. Its totient is φ = 19185216840.

The previous prime is 28786324439. The next prime is 28786324477. The reversal of 28786324467 is 76442368782.

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

It is not a de Polignac number, because 28786324467 - 2¹⁹ = 28785800179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28786324477) 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, 1404667 + ... + 1425012.

It is an arithmetic number, because the mean of its divisors is an integer number (4799137280).

Almost surely, 2^28786324467 is an apocalyptic number.

28786324467 is a deficient number, since it is larger than the sum of its proper divisors (9606773773).

28786324467 is a wasteful number, since it uses less digits than its factorization.

28786324467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2833073.

The product of its digits is 21676032, while the sum is 57.

The spelling of 28786324467 in words is "twenty-eight billion, seven hundred eighty-six million, three hundred twenty-four thousand, four hundred sixty-seven".