28018048871 has 2 divisors, whose sum is σ = 28018048872. Its totient is φ = 28018048870.

The previous prime is 28018048847. The next prime is 28018048901. The reversal of 28018048871 is 17884081082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28018048871 - 2³⁴ = 10838179687 is a prime.

It is a super-2 number, since 2×28018048871² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28018048841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14009024435 + 14009024436.

It is an arithmetic number, because the mean of its divisors is an integer number (14009024436).

Almost surely, 2^28018048871 is an apocalyptic number.

28018048871 is a deficient number, since it is larger than the sum of its proper divisors (1).

28018048871 is an equidigital number, since it uses as much as digits as its factorization.

28018048871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 229376, while the sum is 47.

The spelling of 28018048871 in words is "twenty-eight billion, eighteen million, forty-eight thousand, eight hundred seventy-one".