12678064992 has 36 divisors (see below), whose sum is σ = 36053248140. Its totient is φ = 4226021568.

The previous prime is 12678064981. The next prime is 12678064999. The reversal of 12678064992 is 29946087621.

12678064992 is a `hidden beast` number, since 12 + 67 + 80 + 6 + 499 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12678064999) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22010242 + ... + 22010817.

It is an arithmetic number, because the mean of its divisors is an integer number (1001479115).

Almost surely, 2^12678064992 is an apocalyptic number.

12678064992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12678064992 is an abundant number, since it is smaller than the sum of its proper divisors (23375183148).

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

12678064992 is a wasteful number, since it uses less digits than its factorization.

12678064992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44021075 (or 44021064 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 12678064992 in words is "twelve billion, six hundred seventy-eight million, sixty-four thousand, nine hundred ninety-two".