561024471423640 has 32 divisors (see below), whose sum is σ = 1442634355090080. Its totient is φ = 192351247345152.

The previous prime is 561024471423589. The next prime is 561024471423671. The reversal of 561024471423640 is 46324174420165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001829412977 + ... + 1001829413536.

It is an arithmetic number, because the mean of its divisors is an integer number (45082323596565).

Almost surely, 2^{561024471423640} is an apocalyptic number.

It is an amenable number.

561024471423640 is an abundant number, since it is smaller than the sum of its proper divisors (881609883666440).

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

561024471423640 is a wasteful number, since it uses less digits than its factorization.

561024471423640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003658826531 (or 2003658826527 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 49.

The spelling of 561024471423640 in words is "five hundred sixty-one trillion, twenty-four billion, four hundred seventy-one million, four hundred twenty-three thousand, six hundred forty".