28847237875 has 16 divisors (see below), whose sum is σ = 36508425408. Its totient is φ = 22752744000.

The previous prime is 28847237873. The next prime is 28847237927. The reversal of 28847237875 is 57873274882.

It is a happy number.

It is not a de Polignac number, because 28847237875 - 2¹ = 28847237873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28847237873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1616322 + ... + 1634071.

It is an arithmetic number, because the mean of its divisors is an integer number (2281776588).

Almost surely, 2^28847237875 is an apocalyptic number.

28847237875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28847237875 is a deficient number, since it is larger than the sum of its proper divisors (7661187533).

28847237875 is an equidigital number, since it uses as much as digits as its factorization.

28847237875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3250479 (or 3250469 counting only the distinct ones).

The product of its digits is 42147840, while the sum is 61.

The spelling of 28847237875 in words is "twenty-eight billion, eight hundred forty-seven million, two hundred thirty-seven thousand, eight hundred seventy-five".