64653461226643 has 4 divisors (see below), whose sum is σ = 64938278236680. Its totient is φ = 64368644216608.

The previous prime is 64653461226569. The next prime is 64653461226647. The reversal of 64653461226643 is 34662216435646.

It is a happy number.

64653461226643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64653461226643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64653461226647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142408504678 + ... + 142408505131.

It is an arithmetic number, because the mean of its divisors is an integer number (16234569559170).

Almost surely, 2^{64653461226643} is an apocalyptic number.

64653461226643 is a deficient number, since it is larger than the sum of its proper divisors (284817010037).

64653461226643 is a wasteful number, since it uses less digits than its factorization.

64653461226643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284817010036.

The product of its digits is 89579520, while the sum is 58.

The spelling of 64653461226643 in words is "sixty-four trillion, six hundred fifty-three billion, four hundred sixty-one million, two hundred twenty-six thousand, six hundred forty-three".