64503320339 has 8 divisors (see below), whose sum is σ = 66630389760. Its totient is φ = 62379145800.

The previous prime is 64503320291. The next prime is 64503320351. The reversal of 64503320339 is 93302330546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64503320339 - 2⁸ = 64503320083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64503320359) 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 in 7 ways as a sum of consecutive naturals, for example, 678377 + ... + 767594.

It is an arithmetic number, because the mean of its divisors is an integer number (8328798720).

Almost surely, 2^64503320339 is an apocalyptic number.

64503320339 is a deficient number, since it is larger than the sum of its proper divisors (2127069421).

64503320339 is a wasteful number, since it uses less digits than its factorization.

64503320339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447441.

The product of its (nonzero) digits is 174960, while the sum is 38.

The spelling of 64503320339 in words is "sixty-four billion, five hundred three million, three hundred twenty thousand, three hundred thirty-nine".