65389888939 has 2 divisors, whose sum is σ = 65389888940. Its totient is φ = 65389888938.

The previous prime is 65389888931. The next prime is 65389889041. The reversal of 65389888939 is 93988898356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65389888939 - 2³ = 65389888931 is a prime.

It is not a weakly prime, because it can be changed into another prime (65389888931) 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, 32694944469 + 32694944470.

It is an arithmetic number, because the mean of its divisors is an integer number (32694944470).

Almost surely, 2^65389888939 is an apocalyptic number.

65389888939 is a deficient number, since it is larger than the sum of its proper divisors (1).

65389888939 is an equidigital number, since it uses as much as digits as its factorization.

65389888939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806215680, while the sum is 76.

The spelling of 65389888939 in words is "sixty-five billion, three hundred eighty-nine million, eight hundred eighty-eight thousand, nine hundred thirty-nine".