12771356608 has 28 divisors (see below), whose sum is σ = 25407047992. Its totient is φ = 6369580800.

The previous prime is 12771356593. The next prime is 12771356617. The reversal of 12771356608 is 80665317721.

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, 225918 + ... + 276733.

Almost surely, 2^12771356608 is an apocalyptic number.

It is an amenable number.

12771356608 is a deficient number, since it is larger than the sum of its proper divisors (12635691384).

12771356608 is an equidigital number, since it uses as much as digits as its factorization.

12771356608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503060 (or 503050 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 12771356608 in words is "twelve billion, seven hundred seventy-one million, three hundred fifty-six thousand, six hundred eight".