64849063529 has 2 divisors, whose sum is σ = 64849063530. Its totient is φ = 64849063528.

The previous prime is 64849063501. The next prime is 64849063537. The reversal of 64849063529 is 92536094846.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61133551504 + 3715512025 = 247252^2 + 60955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64849063529 is a prime.

It is not a weakly prime, because it can be changed into another prime (64849069529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32424531764 + 32424531765.

It is an arithmetic number, because the mean of its divisors is an integer number (32424531765).

Almost surely, 2^64849063529 is an apocalyptic number.

It is an amenable number.

64849063529 is a deficient number, since it is larger than the sum of its proper divisors (1).

64849063529 is an equidigital number, since it uses as much as digits as its factorization.

64849063529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11197440, while the sum is 56.

The spelling of 64849063529 in words is "sixty-four billion, eight hundred forty-nine million, sixty-three thousand, five hundred twenty-nine".