564504743021 has 4 divisors (see below), whose sum is σ = 566651149152. Its totient is φ = 562358336892.

The previous prime is 564504743003. The next prime is 564504743029. The reversal of 564504743021 is 120347405465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 564504743021 - 2⁶ = 564504742957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 564504743021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564504743029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073202671 + ... + 1073203196.

It is an arithmetic number, because the mean of its divisors is an integer number (141662787288).

Almost surely, 2^564504743021 is an apocalyptic number.

It is an amenable number.

564504743021 is a deficient number, since it is larger than the sum of its proper divisors (2146406131).

564504743021 is a wasteful number, since it uses less digits than its factorization.

564504743021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146406130.

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 564504743021 in words is "five hundred sixty-four billion, five hundred four million, seven hundred forty-three thousand, twenty-one".