389986866803 has 2 divisors, whose sum is σ = 389986866804. Its totient is φ = 389986866802.

The previous prime is 389986866791. The next prime is 389986866839. The reversal of 389986866803 is 308668689983.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 389986866803 - 2⁸ = 389986866547 is a prime.

It is not a weakly prime, because it can be changed into another prime (389986866853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194993433401 + 194993433402.

It is an arithmetic number, because the mean of its divisors is an integer number (194993433402).

Almost surely, 2^389986866803 is an apocalyptic number.

389986866803 is a deficient number, since it is larger than the sum of its proper divisors (1).

389986866803 is an equidigital number, since it uses as much as digits as its factorization.

389986866803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 644972544, while the sum is 74.

The spelling of 389986866803 in words is "three hundred eighty-nine billion, nine hundred eighty-six million, eight hundred sixty-six thousand, eight hundred three".