28863488971 has 2 divisors, whose sum is σ = 28863488972. Its totient is φ = 28863488970.

The previous prime is 28863488887. The next prime is 28863488993. The reversal of 28863488971 is 17988436882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28863488971 - 2¹¹ = 28863486923 is a prime.

It is not a weakly prime, because it can be changed into another prime (28863485971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14431744485 + 14431744486.

It is an arithmetic number, because the mean of its divisors is an integer number (14431744486).

Almost surely, 2^28863488971 is an apocalyptic number.

28863488971 is a deficient number, since it is larger than the sum of its proper divisors (1).

28863488971 is an equidigital number, since it uses as much as digits as its factorization.

28863488971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37158912, while the sum is 64.

The spelling of 28863488971 in words is "twenty-eight billion, eight hundred sixty-three million, four hundred eighty-eight thousand, nine hundred seventy-one".