12771676988 has 24 divisors (see below), whose sum is σ = 25547676000. Its totient is φ = 5472649728.

The previous prime is 12771676901. The next prime is 12771676993. The reversal of 12771676988 is 88967617721.

It is a super-5 number, since 5×12771676988⁵ (a number of 52 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12771676988.

It is a congruent number.

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, 145208 + ... + 215936.

It is an arithmetic number, because the mean of its divisors is an integer number (1064486500).

Almost surely, 2^12771676988 is an apocalyptic number.

It is an amenable number.

12771676988 is an abundant number, since it is smaller than the sum of its proper divisors (12775999012).

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

12771676988 is a wasteful number, since it uses less digits than its factorization.

12771676988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77189 (or 77187 counting only the distinct ones).

The product of its digits is 14224896, while the sum is 62.

The spelling of 12771676988 in words is "twelve billion, seven hundred seventy-one million, six hundred seventy-six thousand, nine hundred eighty-eight".