65343613837 has 2 divisors, whose sum is σ = 65343613838. Its totient is φ = 65343613836.

The previous prime is 65343613667. The next prime is 65343613877. The reversal of 65343613837 is 73831634356.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48905553316 + 16438060521 = 221146^2 + 128211^2 .

It is a cyclic number.

It is not a de Polignac number, because 65343613837 - 2³⁵ = 30983875469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65343613877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32671806918 + 32671806919.

It is an arithmetic number, because the mean of its divisors is an integer number (32671806919).

Almost surely, 2^65343613837 is an apocalyptic number.

It is an amenable number.

65343613837 is a deficient number, since it is larger than the sum of its proper divisors (1).

65343613837 is an equidigital number, since it uses as much as digits as its factorization.

65343613837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 49.

The spelling of 65343613837 in words is "sixty-five billion, three hundred forty-three million, six hundred thirteen thousand, eight hundred thirty-seven".