65043463643 has 2 divisors, whose sum is σ = 65043463644. Its totient is φ = 65043463642.

The previous prime is 65043463621. The next prime is 65043463669. The reversal of 65043463643 is 34636434056.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65043463643 - 2⁶ = 65043463579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65043463594 and 65043463603.

It is not a weakly prime, because it can be changed into another prime (65043463673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32521731821 + 32521731822.

It is an arithmetic number, because the mean of its divisors is an integer number (32521731822).

Almost surely, 2^65043463643 is an apocalyptic number.

65043463643 is a deficient number, since it is larger than the sum of its proper divisors (1).

65043463643 is an equidigital number, since it uses as much as digits as its factorization.

65043463643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 44.

Adding to 65043463643 its reverse (34636434056), we get a palindrome (99679897699).

The spelling of 65043463643 in words is "sixty-five billion, forty-three million, four hundred sixty-three thousand, six hundred forty-three".