564778404378158 has 16 divisors (see below), whose sum is σ = 847211658424560. Its totient is φ = 282374518673856.

The previous prime is 564778404378151. The next prime is 564778404378161. The reversal of 564778404378158 is 851873404877465.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564778404378151) 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 7 ways as a sum of consecutive naturals, for example, 5641584608 + ... + 5641684716.

It is an arithmetic number, because the mean of its divisors is an integer number (52950728651535).

Almost surely, 2^{564778404378158} is an apocalyptic number.

564778404378158 is a deficient number, since it is larger than the sum of its proper divisors (282433254046402).

564778404378158 is a wasteful number, since it uses less digits than its factorization.

564778404378158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218611.

The product of its (nonzero) digits is 5057740800, while the sum is 77.

The spelling of 564778404378158 in words is "five hundred sixty-four trillion, seven hundred seventy-eight billion, four hundred four million, three hundred seventy-eight thousand, one hundred fifty-eight".