12979487998 has 32 divisors (see below), whose sum is σ = 21475329120. Its totient is φ = 5857981440.

The previous prime is 12979487933. The next prime is 12979488007. The reversal of 12979487998 is 89978497921.

12979487998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12979487998.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3340 + ... + 161152.

It is an arithmetic number, because the mean of its divisors is an integer number (671104035).

Almost surely, 2^12979487998 is an apocalyptic number.

12979487998 is a deficient number, since it is larger than the sum of its proper divisors (8495841122).

12979487998 is a wasteful number, since it uses less digits than its factorization.

12979487998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157932.

The product of its digits is 164602368, while the sum is 73.

The spelling of 12979487998 in words is "twelve billion, nine hundred seventy-nine million, four hundred eighty-seven thousand, nine hundred ninety-eight".