64504794305578 has 32 divisors (see below), whose sum is σ = 111796634014848. Its totient is φ = 27587160691200.

The previous prime is 64504794305573. The next prime is 64504794305587. The reversal of 64504794305578 is 87550349740546.

64504794305578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (64504794305573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25259118 + ... + 27695353.

It is an arithmetic number, because the mean of its divisors is an integer number (3493644812964).

Almost surely, 2^{64504794305578} is an apocalyptic number.

64504794305578 is a deficient number, since it is larger than the sum of its proper divisors (47291839709270).

64504794305578 is a wasteful number, since it uses less digits than its factorization.

64504794305578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52957758.

The product of its (nonzero) digits is 508032000, while the sum is 67.

The spelling of 64504794305578 in words is "sixty-four trillion, five hundred four billion, seven hundred ninety-four million, three hundred five thousand, five hundred seventy-eight".