28358118647 has 2 divisors, whose sum is σ = 28358118648. Its totient is φ = 28358118646.

The previous prime is 28358118637. The next prime is 28358118673. The reversal of 28358118647 is 74681185382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28358118647 - 2⁴ = 28358118631 is a prime.

It is a super-2 number, since 2×28358118647² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28358118637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14179059323 + 14179059324.

It is an arithmetic number, because the mean of its divisors is an integer number (14179059324).

Almost surely, 2^28358118647 is an apocalyptic number.

28358118647 is a deficient number, since it is larger than the sum of its proper divisors (1).

28358118647 is an equidigital number, since it uses as much as digits as its factorization.

28358118647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2580480, while the sum is 53.

The spelling of 28358118647 in words is "twenty-eight billion, three hundred fifty-eight million, one hundred eighteen thousand, six hundred forty-seven".