12777806803312 has 20 divisors (see below), whose sum is σ = 24777410447560. Its totient is φ = 6383636365248.

The previous prime is 12777806803283. The next prime is 12777806803327. The reversal of 12777806803312 is 21330860877721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329169762 + ... + 329208577.

It is an arithmetic number, because the mean of its divisors is an integer number (1238870522378).

Almost surely, 2^{12777806803312} is an apocalyptic number.

It is an amenable number.

12777806803312 is a deficient number, since it is larger than the sum of its proper divisors (11999603644248).

12777806803312 is a wasteful number, since it uses less digits than its factorization.

12777806803312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658379560 (or 658379554 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 55.

The spelling of 12777806803312 in words is "twelve trillion, seven hundred seventy-seven billion, eight hundred six million, eight hundred three thousand, three hundred twelve".