67128652801 has 4 divisors (see below), whose sum is σ = 76718460352. Its totient is φ = 57538845252.

The previous prime is 67128652751. The next prime is 67128652813. The reversal of 67128652801 is 10825682176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 67128652801 - 2¹⁵ = 67128620033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67128652841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4794903765 + ... + 4794903778.

It is an arithmetic number, because the mean of its divisors is an integer number (19179615088).

Almost surely, 2^67128652801 is an apocalyptic number.

It is an amenable number.

67128652801 is a deficient number, since it is larger than the sum of its proper divisors (9589807551).

67128652801 is an equidigital number, since it uses as much as digits as its factorization.

67128652801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9589807550.

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 67128652801 in words is "sixty-seven billion, one hundred twenty-eight million, six hundred fifty-two thousand, eight hundred one".