28847142361 has 4 divisors (see below), whose sum is σ = 28854991332. Its totient is φ = 28839293392.

The previous prime is 28847142347. The next prime is 28847142431. The reversal of 28847142361 is 16324174882.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16807566736 + 12039575625 = 129644^2 + 109725^2 .

It is a cyclic number.

It is not a de Polignac number, because 28847142361 - 2¹¹ = 28847140313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28847142061) 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, 3918970 + ... + 3926323.

It is an arithmetic number, because the mean of its divisors is an integer number (7213747833).

Almost surely, 2^28847142361 is an apocalyptic number.

It is an amenable number.

28847142361 is a deficient number, since it is larger than the sum of its proper divisors (7848971).

28847142361 is an equidigital number, since it uses as much as digits as its factorization.

28847142361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7848970.

The product of its digits is 516096, while the sum is 46.

The spelling of 28847142361 in words is "twenty-eight billion, eight hundred forty-seven million, one hundred forty-two thousand, three hundred sixty-one".