12689472014 has 4 divisors (see below), whose sum is σ = 19034208024. Its totient is φ = 6344736006.

The previous prime is 12689472007. The next prime is 12689472041. The reversal of 12689472014 is 41027498621.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×12689472014² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3172368002 + ... + 3172368005.

It is an arithmetic number, because the mean of its divisors is an integer number (4758552006).

Almost surely, 2^12689472014 is an apocalyptic number.

12689472014 is a deficient number, since it is larger than the sum of its proper divisors (6344736010).

12689472014 is an equidigital number, since it uses as much as digits as its factorization.

12689472014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6344736009.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 12689472014 in words is "twelve billion, six hundred eighty-nine million, four hundred seventy-two thousand, fourteen".