28847143347 has 32 divisors (see below), whose sum is σ = 43007016960. Its totient is φ = 17051317920.

The previous prime is 28847143333. The next prime is 28847143387. The reversal of 28847143347 is 74334174882.

It is not a de Polignac number, because 28847143347 - 2¹⁰ = 28847142323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28847143347.

It is not an unprimeable number, because it can be changed into a prime (28847143307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 188938 + ... + 305600.

It is an arithmetic number, because the mean of its divisors is an integer number (1343969280).

Almost surely, 2^28847143347 is an apocalyptic number.

28847143347 is a deficient number, since it is larger than the sum of its proper divisors (14159873613).

28847143347 is a wasteful number, since it uses less digits than its factorization.

28847143347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116863.

The product of its digits is 3612672, while the sum is 51.

The spelling of 28847143347 in words is "twenty-eight billion, eight hundred forty-seven million, one hundred forty-three thousand, three hundred forty-seven".