28351392347 has 2 divisors, whose sum is σ = 28351392348. Its totient is φ = 28351392346.

The previous prime is 28351392323. The next prime is 28351392389. The reversal of 28351392347 is 74329315382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28351392347 - 2¹⁴ = 28351375963 is a prime.

It is not a weakly prime, because it can be changed into another prime (28351392397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14175696173 + 14175696174.

It is an arithmetic number, because the mean of its divisors is an integer number (14175696174).

Almost surely, 2^28351392347 is an apocalyptic number.

28351392347 is a deficient number, since it is larger than the sum of its proper divisors (1).

28351392347 is an equidigital number, since it uses as much as digits as its factorization.

28351392347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 47.

The spelling of 28351392347 in words is "twenty-eight billion, three hundred fifty-one million, three hundred ninety-two thousand, three hundred forty-seven".