5643210507640 has 32 divisors (see below), whose sum is σ = 12714688939680. Its totient is φ = 2254179261312.

The previous prime is 5643210507619. The next prime is 5643210507643. The reversal of 5643210507640 is 467050123465.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5643210507643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96999987 + ... + 97058146.

It is an arithmetic number, because the mean of its divisors is an integer number (397334029365).

Almost surely, 2^{5643210507640} is an apocalyptic number.

It is an amenable number.

5643210507640 is an abundant number, since it is smaller than the sum of its proper divisors (7071478432040).

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

5643210507640 is a wasteful number, since it uses less digits than its factorization.

5643210507640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194058871 (or 194058867 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 5643210507640 in words is "five trillion, six hundred forty-three billion, two hundred ten million, five hundred seven thousand, six hundred forty".