65389889041 has 2 divisors, whose sum is σ = 65389889042. Its totient is φ = 65389889040.

The previous prime is 65389888939. The next prime is 65389889057. The reversal of 65389889041 is 14098898356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40051616641 + 25338272400 = 200129^2 + 159180^2 .

It is a cyclic number.

It is not a de Polignac number, because 65389889041 - 2²⁵ = 65356334609 is a prime.

It is not a weakly prime, because it can be changed into another prime (65389889141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32694944520 + 32694944521.

It is an arithmetic number, because the mean of its divisors is an integer number (32694944521).

Almost surely, 2^65389889041 is an apocalyptic number.

It is an amenable number.

65389889041 is a deficient number, since it is larger than the sum of its proper divisors (1).

65389889041 is an equidigital number, since it uses as much as digits as its factorization.

65389889041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14929920, while the sum is 61.

The spelling of 65389889041 in words is "sixty-five billion, three hundred eighty-nine million, eight hundred eighty-nine thousand, forty-one".