6543807571912 has 64 divisors (see below), whose sum is σ = 13254479441280. Its totient is φ = 3010847127552.

The previous prime is 6543807571909. The next prime is 6543807571913. The reversal of 6543807571912 is 2191757083456.

It is not an unprimeable number, because it can be changed into a prime (6543807571913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147817093 + ... + 147861355.

It is an arithmetic number, because the mean of its divisors is an integer number (207101241270).

It is a 1-persistent number, because it is pandigital, but 2⋅6543807571912 = 13087615143824 is not.

Almost surely, 2^{6543807571912} is an apocalyptic number.

It is an amenable number.

6543807571912 is an abundant number, since it is smaller than the sum of its proper divisors (6710671869368).

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

6543807571912 is a wasteful number, since it uses less digits than its factorization.

6543807571912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48662 (or 48658 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 58.

The spelling of 6543807571912 in words is "six trillion, five hundred forty-three billion, eight hundred seven million, five hundred seventy-one thousand, nine hundred twelve".