564500838917 has 16 divisors (see below), whose sum is σ = 603795574512. Its totient is φ = 525885619200.

The previous prime is 564500838871. The next prime is 564500838919. The reversal of 564500838917 is 719838005465.

It can be written as a sum of positive squares in 8 ways, for example, as 165877812961 + 398623025956 = 407281^2 + 631366^2 .

It is a cyclic number.

It is not a de Polignac number, because 564500838917 - 2⁸ = 564500838661 is a prime.

It is a super-2 number, since 2×564500838917² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564500838919) 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, 6268703 + ... + 6358115.

It is an arithmetic number, because the mean of its divisors is an integer number (37737223407).

Almost surely, 2^564500838917 is an apocalyptic number.

It is an amenable number.

564500838917 is a deficient number, since it is larger than the sum of its proper divisors (39294735595).

564500838917 is a wasteful number, since it uses less digits than its factorization.

564500838917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93208.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 564500838917 in words is "five hundred sixty-four billion, five hundred million, eight hundred thirty-eight thousand, nine hundred seventeen".