12657586672 has 10 divisors (see below), whose sum is σ = 24524074208. Its totient is φ = 6328793328.

The previous prime is 12657586663. The next prime is 12657586717. The reversal of 12657586672 is 27668575621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395549568 + ... + 395549599.

Almost surely, 2^12657586672 is an apocalyptic number.

It is an amenable number.

12657586672 is a deficient number, since it is larger than the sum of its proper divisors (11866487536).

12657586672 is an equidigital number, since it uses as much as digits as its factorization.

12657586672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791099175 (or 791099169 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 55.

The spelling of 12657586672 in words is "twelve billion, six hundred fifty-seven million, five hundred eighty-six thousand, six hundred seventy-two".