67052955748648 has 8 divisors (see below), whose sum is σ = 125724292028730. Its totient is φ = 33526477874320.

The previous prime is 67052955748643. The next prime is 67052955748711. The reversal of 67052955748648 is 84684755925076.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 67052547627844 + 408120804 = 8188562^2 + 20202^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (67052955748643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4190809734283 + ... + 4190809734298.

Almost surely, 2^{67052955748648} is an apocalyptic number.

It is an amenable number.

67052955748648 is a deficient number, since it is larger than the sum of its proper divisors (58671336280082).

67052955748648 is a wasteful number, since it uses less digits than its factorization.

67052955748648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8381619468587 (or 8381619468583 counting only the distinct ones).

The product of its (nonzero) digits is 4064256000, while the sum is 76.

The spelling of 67052955748648 in words is "sixty-seven trillion, fifty-two billion, nine hundred fifty-five million, seven hundred forty-eight thousand, six hundred forty-eight".