64789564803 has 64 divisors (see below), whose sum is σ = 91888742400. Its totient is φ = 40559149440.

The previous prime is 64789564799. The next prime is 64789564837. The reversal of 64789564803 is 30846598746.

It is not a de Polignac number, because 64789564803 - 2² = 64789564799 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (64789564703) 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 63 ways as a sum of consecutive naturals, for example, 93761688 + ... + 93762378.

It is an arithmetic number, because the mean of its divisors is an integer number (1435761600).

Almost surely, 2^64789564803 is an apocalyptic number.

64789564803 is a deficient number, since it is larger than the sum of its proper divisors (27099177597).

64789564803 is a wasteful number, since it uses less digits than its factorization.

64789564803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032.

The product of its (nonzero) digits is 34836480, while the sum is 60.

The spelling of 64789564803 in words is "sixty-four billion, seven hundred eighty-nine million, five hundred sixty-four thousand, eight hundred three".