5643644670420 has 96 divisors (see below), whose sum is σ = 16744791547008. Its totient is φ = 1415339814912.

The previous prime is 5643644670401. The next prime is 5643644670449. The reversal of 5643644670420 is 240764463465.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 847609 + ... + 3464928.

It is an arithmetic number, because the mean of its divisors is an integer number (174424911948).

Almost surely, 2^{5643644670420} is an apocalyptic number.

It is an amenable number.

5643644670420 is an abundant number, since it is smaller than the sum of its proper divisors (11101146876588).

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

5643644670420 is a wasteful number, since it uses less digits than its factorization.

5643644670420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313849 (or 4313847 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 51.

The spelling of 5643644670420 in words is "five trillion, six hundred forty-three billion, six hundred forty-four million, six hundred seventy thousand, four hundred twenty".