64854289568123 has 16 divisors (see below), whose sum is σ = 70771655685600. Its totient is φ = 58940512385280.

The previous prime is 64854289568111. The next prime is 64854289568141. The reversal of 64854289568123 is 32186598245846.

It is a cyclic number.

It is not a de Polignac number, because 64854289568123 - 2⁶ = 64854289568059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64854289564123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832183823 + ... + 832261751.

It is an arithmetic number, because the mean of its divisors is an integer number (4423228480350).

Almost surely, 2^{64854289568123} is an apocalyptic number.

64854289568123 is a deficient number, since it is larger than the sum of its proper divisors (5917366117477).

64854289568123 is a wasteful number, since it uses less digits than its factorization.

64854289568123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99982.

The product of its digits is 796262400, while the sum is 71.

The spelling of 64854289568123 in words is "sixty-four trillion, eight hundred fifty-four billion, two hundred eighty-nine million, five hundred sixty-eight thousand, one hundred twenty-three".