12704647608 has 64 divisors (see below), whose sum is σ = 35305408800. Its totient is φ = 4233116160.

The previous prime is 12704647607. The next prime is 12704647661. The reversal of 12704647608 is 80674640721.

12704647608 is a `hidden beast` number, since 127 + 0 + 464 + 7 + 60 + 8 = 666.

It is a super-2 number, since 2×12704647608² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12704647601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570768 + ... + 592608.

Almost surely, 2^12704647608 is an apocalyptic number.

12704647608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12704647608 is an abundant number, since it is smaller than the sum of its proper divisors (22600761192).

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

12704647608 is a wasteful number, since it uses less digits than its factorization.

12704647608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24549 (or 24539 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 12704647608 in words is "twelve billion, seven hundred four million, six hundred forty-seven thousand, six hundred eight".