28318701683 has 2 divisors, whose sum is σ = 28318701684. Its totient is φ = 28318701682.

The previous prime is 28318701673. The next prime is 28318701707. The reversal of 28318701683 is 38610781382.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28318701683 - 2⁴ = 28318701667 is a prime.

It is not a weakly prime, because it can be changed into another prime (28318701673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14159350841 + 14159350842.

It is an arithmetic number, because the mean of its divisors is an integer number (14159350842).

Almost surely, 2^28318701683 is an apocalyptic number.

28318701683 is a deficient number, since it is larger than the sum of its proper divisors (1).

28318701683 is an equidigital number, since it uses as much as digits as its factorization.

28318701683 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 28318701683 in words is "twenty-eight billion, three hundred eighteen million, seven hundred one thousand, six hundred eighty-three".