28290886847 has 2 divisors, whose sum is σ = 28290886848. Its totient is φ = 28290886846.

The previous prime is 28290886783. The next prime is 28290886901. The reversal of 28290886847 is 74868809282.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28290886847 - 2⁶ = 28290886783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28290886847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28290886147) 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, 14145443423 + 14145443424.

It is an arithmetic number, because the mean of its divisors is an integer number (14145443424).

Almost surely, 2^28290886847 is an apocalyptic number.

28290886847 is a deficient number, since it is larger than the sum of its proper divisors (1).

28290886847 is an equidigital number, since it uses as much as digits as its factorization.

28290886847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24772608, while the sum is 62.

The spelling of 28290886847 in words is "twenty-eight billion, two hundred ninety million, eight hundred eighty-six thousand, eight hundred forty-seven".