28618143283 has 4 divisors (see below), whose sum is σ = 29604975840. Its totient is φ = 27631310728.

The previous prime is 28618143271. The next prime is 28618143313. The reversal of 28618143283 is 38234181682.

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-28618143283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28618143233) 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, 493416235 + ... + 493416292.

It is an arithmetic number, because the mean of its divisors is an integer number (7401243960).

Almost surely, 2^28618143283 is an apocalyptic number.

28618143283 is a deficient number, since it is larger than the sum of its proper divisors (986832557).

28618143283 is an equidigital number, since it uses as much as digits as its factorization.

28618143283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986832556.

The product of its digits is 442368, while the sum is 46.

The spelling of 28618143283 in words is "twenty-eight billion, six hundred eighteen million, one hundred forty-three thousand, two hundred eighty-three".