64820153529 has 12 divisors (see below), whose sum is σ = 97096855856. Its totient is φ = 43213435524.

The previous prime is 64820153477. The next prime is 64820153579. The reversal of 64820153529 is 92535102846.

It is not a de Polignac number, because 64820153529 - 2⁸ = 64820153273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64820153579) 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 in 11 ways as a sum of consecutive naturals, for example, 133374559 + ... + 133375044.

Almost surely, 2^64820153529 is an apocalyptic number.

It is an amenable number.

64820153529 is a deficient number, since it is larger than the sum of its proper divisors (32276702327).

64820153529 is an equidigital number, since it uses as much as digits as its factorization.

64820153529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266749618 (or 266749606 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 64820153529 in words is "sixty-four billion, eight hundred twenty million, one hundred fifty-three thousand, five hundred twenty-nine".