564393960438 has 32 divisors (see below), whose sum is σ = 1407320006400. Its totient is φ = 146595833760.

The previous prime is 564393960409. The next prime is 564393960443. The reversal of 564393960438 is 834069393465.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610815513 + ... + 610816436.

It is an arithmetic number, because the mean of its divisors is an integer number (43978750200).

Almost surely, 2^564393960438 is an apocalyptic number.

564393960438 is an abundant number, since it is smaller than the sum of its proper divisors (842926045962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

564393960438 is a wasteful number, since it uses less digits than its factorization.

564393960438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221631972.

The product of its (nonzero) digits is 50388480, while the sum is 60.

The spelling of 564393960438 in words is "five hundred sixty-four billion, three hundred ninety-three million, nine hundred sixty thousand, four hundred thirty-eight".