12774654856516 has 24 divisors (see below), whose sum is σ = 26239831599296. Its totient is φ = 5326883105760.

The previous prime is 12774654856427. The next prime is 12774654856531. The reversal of 12774654856516 is 61565845647721.

It is a happy number.

12774654856516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 6165372930 + ... + 6165375001.

Almost surely, 2^{12774654856516} is an apocalyptic number.

It is an amenable number.

12774654856516 is an abundant number, since it is smaller than the sum of its proper divisors (13465176742780).

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

12774654856516 is a wasteful number, since it uses less digits than its factorization.

12774654856516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12330747979 (or 12330747977 counting only the distinct ones).

The product of its digits is 338688000, while the sum is 67.

The spelling of 12774654856516 in words is "twelve trillion, seven hundred seventy-four billion, six hundred fifty-four million, eight hundred fifty-six thousand, five hundred sixteen".