564938839465 has 64 divisors (see below), whose sum is σ = 914845155840. Its totient is φ = 323428976640.

The previous prime is 564938839427. The next prime is 564938839483.

564938839465 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 564938839465 - 2¹³ = 564938831273 is a prime.

It is a super-2 number, since 2×564938839465² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 564938839394 and 564938839403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 699501 + ... + 1272469.

It is an arithmetic number, because the mean of its divisors is an integer number (14294455560).

Almost surely, 2^564938839465 is an apocalyptic number.

564938839465 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

564938839465 is a deficient number, since it is larger than the sum of its proper divisors (349906316375).

564938839465 is a wasteful number, since it uses less digits than its factorization.

564938839465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573202.

The product of its digits is 671846400, while the sum is 70.

The spelling of 564938839465 in words is "five hundred sixty-four billion, nine hundred thirty-eight million, eight hundred thirty-nine thousand, four hundred sixty-five".