67552628569 has 2 divisors, whose sum is σ = 67552628570. Its totient is φ = 67552628568.

The previous prime is 67552628513. The next prime is 67552628573. The reversal of 67552628569 is 96582625576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67257235600 + 295392969 = 259340^2 + 17187^2 .

It is a cyclic number.

It is not a de Polignac number, because 67552628569 - 2²⁹ = 67015757657 is a prime.

It is a super-2 number, since 2×67552628569² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67552628509) 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 as a sum of consecutive naturals, namely, 33776314284 + 33776314285.

It is an arithmetic number, because the mean of its divisors is an integer number (33776314285).

Almost surely, 2^67552628569 is an apocalyptic number.

It is an amenable number.

67552628569 is a deficient number, since it is larger than the sum of its proper divisors (1).

67552628569 is an equidigital number, since it uses as much as digits as its factorization.

67552628569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432000, while the sum is 61.

The spelling of 67552628569 in words is "sixty-seven billion, five hundred fifty-two million, six hundred twenty-eight thousand, five hundred sixty-nine".