563721303440 has 40 divisors (see below), whose sum is σ = 1310761635648. Its totient is φ = 225469664640.

The previous prime is 563721303433. The next prime is 563721303463. The reversal of 563721303440 is 44303127365.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 563721303394 and 563721303403.

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, 688349 + ... + 1265411.

Almost surely, 2^563721303440 is an apocalyptic number.

It is an amenable number.

563721303440 is an abundant number, since it is smaller than the sum of its proper divisors (747040332208).

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

563721303440 is a wasteful number, since it uses less digits than its factorization.

563721303440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589287 (or 589281 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 38.

The spelling of 563721303440 in words is "five hundred sixty-three billion, seven hundred twenty-one million, three hundred three thousand, four hundred forty".