6798210002721 has 12 divisors (see below), whose sum is σ = 10336459653520. Its totient is φ = 4293606317400.

The previous prime is 6798210002719. The next prime is 6798210002729. The reversal of 6798210002721 is 1272000128976.

It is a happy number.

It is not a de Polignac number, because 6798210002721 - 2¹ = 6798210002719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6798210002729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19877806855 + ... + 19877807196.

Almost surely, 2^{6798210002721} is an apocalyptic number.

It is an amenable number.

6798210002721 is a deficient number, since it is larger than the sum of its proper divisors (3538249650799).

6798210002721 is a wasteful number, since it uses less digits than its factorization.

6798210002721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39755614076 (or 39755614073 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 6798210002721 in words is "six trillion, seven hundred ninety-eight billion, two hundred ten million, two thousand, seven hundred twenty-one".