12800947678 has 8 divisors (see below), whose sum is σ = 19205386200. Its totient is φ = 6399152280.

The previous prime is 12800947673. The next prime is 12800947751. The reversal of 12800947678 is 87674900821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12800947678² (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 (12800947673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648628 + ... + 668071.

It is an arithmetic number, because the mean of its divisors is an integer number (2400673275).

Almost surely, 2^12800947678 is an apocalyptic number.

12800947678 is a deficient number, since it is larger than the sum of its proper divisors (6404438522).

12800947678 is a wasteful number, since it uses less digits than its factorization.

12800947678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321562.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The spelling of 12800947678 in words is "twelve billion, eight hundred million, nine hundred forty-seven thousand, six hundred seventy-eight".