64534347629 has 2 divisors, whose sum is σ = 64534347630. Its totient is φ = 64534347628.

The previous prime is 64534347593. The next prime is 64534347659. The reversal of 64534347629 is 92674343546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57288422500 + 7245925129 = 239350^2 + 85123^2 .

It is a cyclic number.

It is not a de Polignac number, because 64534347629 - 2⁸ = 64534347373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64534347659) 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, 32267173814 + 32267173815.

It is an arithmetic number, because the mean of its divisors is an integer number (32267173815).

Almost surely, 2^64534347629 is an apocalyptic number.

It is an amenable number.

64534347629 is a deficient number, since it is larger than the sum of its proper divisors (1).

64534347629 is an equidigital number, since it uses as much as digits as its factorization.

64534347629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 53.

The spelling of 64534347629 in words is "sixty-four billion, five hundred thirty-four million, three hundred forty-seven thousand, six hundred twenty-nine".