64629034849 has 2 divisors, whose sum is σ = 64629034850. Its totient is φ = 64629034848.

The previous prime is 64629034819. The next prime is 64629034879. The reversal of 64629034849 is 94843092646.

It is a balanced prime because it is at equal distance from previous prime (64629034819) and next prime (64629034879).

It can be written as a sum of positive squares in only one way, i.e., 53641802449 + 10987232400 = 231607^2 + 104820^2 .

It is a cyclic number.

It is not a de Polignac number, because 64629034849 - 2⁵ = 64629034817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64629034849.

It is not a weakly prime, because it can be changed into another prime (64629034819) 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 as a sum of consecutive naturals, namely, 32314517424 + 32314517425.

It is an arithmetic number, because the mean of its divisors is an integer number (32314517425).

Almost surely, 2^64629034849 is an apocalyptic number.

It is an amenable number.

64629034849 is a deficient number, since it is larger than the sum of its proper divisors (1).

64629034849 is an equidigital number, since it uses as much as digits as its factorization.

64629034849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8957952, while the sum is 55.

The spelling of 64629034849 in words is "sixty-four billion, six hundred twenty-nine million, thirty-four thousand, eight hundred forty-nine".