28386626347 has 2 divisors, whose sum is σ = 28386626348. Its totient is φ = 28386626346.

The previous prime is 28386626339. The next prime is 28386626357. The reversal of 28386626347 is 74362668382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28386626347 - 2³ = 28386626339 is a prime.

It is not a weakly prime, because it can be changed into another prime (28386626357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14193313173 + 14193313174.

It is an arithmetic number, because the mean of its divisors is an integer number (14193313174).

Almost surely, 2^28386626347 is an apocalyptic number.

28386626347 is a deficient number, since it is larger than the sum of its proper divisors (1).

28386626347 is an equidigital number, since it uses as much as digits as its factorization.

28386626347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13934592, while the sum is 55.

The spelling of 28386626347 in words is "twenty-eight billion, three hundred eighty-six million, six hundred twenty-six thousand, three hundred forty-seven".