564110938821 has 4 divisors (see below), whose sum is σ = 752147918432. Its totient is φ = 376073959212.

The previous prime is 564110938813. The next prime is 564110938877. The reversal of 564110938821 is 128839011465.

It is a happy number.

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 not a de Polignac number, because 564110938821 - 2³ = 564110938813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564110938021) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 94018489801 + ... + 94018489806.

It is an arithmetic number, because the mean of its divisors is an integer number (188036979608).

Almost surely, 2^564110938821 is an apocalyptic number.

It is an amenable number.

564110938821 is a deficient number, since it is larger than the sum of its proper divisors (188036979611).

564110938821 is a wasteful number, since it uses less digits than its factorization.

564110938821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188036979610.

The product of its (nonzero) digits is 414720, while the sum is 48.

The spelling of 564110938821 in words is "five hundred sixty-four billion, one hundred ten million, nine hundred thirty-eight thousand, eight hundred twenty-one".