6718561126212 has 24 divisors (see below), whose sum is σ = 16882538214976. Its totient is φ = 2067249577248.

The previous prime is 6718561126163. The next prime is 6718561126223. The reversal of 6718561126212 is 2126211658176.

It is a happy 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, 21533849608 + ... + 21533849919.

Almost surely, 2^{6718561126212} is an apocalyptic number.

It is an amenable number.

6718561126212 is an abundant number, since it is smaller than the sum of its proper divisors (10163977088764).

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

6718561126212 is a wasteful number, since it uses less digits than its factorization.

6718561126212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43067699547 (or 43067699545 counting only the distinct ones).

The product of its digits is 483840, while the sum is 48.

The spelling of 6718561126212 in words is "six trillion, seven hundred eighteen billion, five hundred sixty-one million, one hundred twenty-six thousand, two hundred twelve".