12988206978 has 8 divisors (see below), whose sum is σ = 25976413968. Its totient is φ = 4329402324.

The previous prime is 12988206967. The next prime is 12988206983. The reversal of 12988206978 is 87960288921.

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

12988206978 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1082350576 + ... + 1082350587.

It is an arithmetic number, because the mean of its divisors is an integer number (3247051746).

Almost surely, 2^12988206978 is an apocalyptic number.

12988206978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12988206978 is a wasteful number, since it uses less digits than its factorization.

12988206978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164701168.

The product of its (nonzero) digits is 6967296, while the sum is 60.

The spelling of 12988206978 in words is "twelve billion, nine hundred eighty-eight million, two hundred six thousand, nine hundred seventy-eight".