6784061117789 has 16 divisors (see below), whose sum is σ = 7035555969024. Its totient is φ = 6534654134400.

The previous prime is 6784061117689. The next prime is 6784061117809. The reversal of 6784061117789 is 9877111604876.

It is a cyclic number.

It is not a de Polignac number, because 6784061117789 - 2¹² = 6784061113693 is a prime.

It is a super-2 number, since 2×6784061117789² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6784061117189) 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, 8287367 + ... + 9069099.

It is an arithmetic number, because the mean of its divisors is an integer number (439722248064).

Almost surely, 2^{6784061117789} is an apocalyptic number.

It is an amenable number.

6784061117789 is a deficient number, since it is larger than the sum of its proper divisors (251494851235).

6784061117789 is a wasteful number, since it uses less digits than its factorization.

6784061117789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783068.

The product of its (nonzero) digits is 28449792, while the sum is 65.

The spelling of 6784061117789 in words is "six trillion, seven hundred eighty-four billion, sixty-one million, one hundred seventeen thousand, seven hundred eighty-nine".