64529389323 has 12 divisors (see below), whose sum is σ = 106524706288. Its totient is φ = 36873936720.

The previous prime is 64529389289. The next prime is 64529389333. The reversal of 64529389323 is 32398392546.

It is a happy number.

64529389323 is a `hidden beast` number, since 6 + 4 + 529 + 3 + 8 + 93 + 23 = 666.

It is not a de Polignac number, because 64529389323 - 2⁹ = 64529388811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64529389323.

It is not an unprimeable number, because it can be changed into a prime (64529389333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 512137948 + ... + 512138073.

Almost surely, 2^64529389323 is an apocalyptic number.

64529389323 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

64529389323 is a deficient number, since it is larger than the sum of its proper divisors (41995316965).

64529389323 is a wasteful number, since it uses less digits than its factorization.

64529389323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024276034 (or 1024276031 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 54.

The spelling of 64529389323 in words is "sixty-four billion, five hundred twenty-nine million, three hundred eighty-nine thousand, three hundred twenty-three".