12677688428 has 24 divisors (see below), whose sum is σ = 22370889072. Its totient is φ = 6286192704.

The previous prime is 12677688403. The next prime is 12677688437. The reversal of 12677688428 is 82488677621.

It is a super-2 number, since 2×12677688428² (a number of 21 digits) contains 22 as substring.

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, 251651 + ... + 297797.

It is an arithmetic number, because the mean of its divisors is an integer number (932120378).

Almost surely, 2^12677688428 is an apocalyptic number.

It is an amenable number.

12677688428 is a deficient number, since it is larger than the sum of its proper divisors (9693200644).

12677688428 is a wasteful number, since it uses less digits than its factorization.

12677688428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46721 (or 46719 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 59.

The spelling of 12677688428 in words is "twelve billion, six hundred seventy-seven million, six hundred eighty-eight thousand, four hundred twenty-eight".