2685054815646 has 24 divisors (see below), whose sum is σ = 6246862224840. Its totient is φ = 767158518672.

The previous prime is 2685054815617. The next prime is 2685054815647. The reversal of 2685054815646 is 6465184505862.

It is a self number, because there is not a number n which added to its sum of digits gives 2685054815646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685054815647) 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, 4566419461 + ... + 4566420048.

It is an arithmetic number, because the mean of its divisors is an integer number (260285926035).

Almost surely, 2^{2685054815646} is an apocalyptic number.

2685054815646 is an abundant number, since it is smaller than the sum of its proper divisors (3561807409194).

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

2685054815646 is a wasteful number, since it uses less digits than its factorization.

2685054815646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9132839528 (or 9132839521 counting only the distinct ones).

The product of its (nonzero) digits is 55296000, while the sum is 60.

The spelling of 2685054815646 in words is "two trillion, six hundred eighty-five billion, fifty-four million, eight hundred fifteen thousand, six hundred forty-six".