6785544546845 has 16 divisors (see below), whose sum is σ = 8181756466560. Its totient is φ = 5402370187200.

The previous prime is 6785544546841. The next prime is 6785544546863. The reversal of 6785544546845 is 5486454455876.

It is not a de Polignac number, because 6785544546845 - 2² = 6785544546841 is a prime.

It is a super-2 number, since 2×6785544546845² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6785544546841) 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, 17384336 + ... + 17770374.

It is an arithmetic number, because the mean of its divisors is an integer number (511359779160).

Almost surely, 2^{6785544546845} is an apocalyptic number.

It is an amenable number.

6785544546845 is a deficient number, since it is larger than the sum of its proper divisors (1396211919715).

6785544546845 is a wasteful number, since it uses less digits than its factorization.

6785544546845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402916.

The product of its digits is 2580480000, while the sum is 71.

The spelling of 6785544546845 in words is "six trillion, seven hundred eighty-five billion, five hundred forty-four million, five hundred forty-six thousand, eight hundred forty-five".