561340009344 has 32 divisors (see below), whose sum is σ = 1491059400840. Its totient is φ = 187113336320.

The previous prime is 561340009339. The next prime is 561340009357. The reversal of 561340009344 is 443900043165.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-3 number, since 3×561340009344³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730911087 + ... + 730911854.

Almost surely, 2^561340009344 is an apocalyptic number.

It is an amenable number.

561340009344 is an abundant number, since it is smaller than the sum of its proper divisors (929719391496).

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

561340009344 is a wasteful number, since it uses less digits than its factorization.

561340009344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461822958 (or 1461822946 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 561340009344 in words is "five hundred sixty-one billion, three hundred forty million, nine thousand, three hundred forty-four".