12698421436 has 12 divisors (see below), whose sum is σ = 22764243600. Its totient is φ = 6194351840.

The previous prime is 12698421433. The next prime is 12698421481. The reversal of 12698421436 is 63412489621.

12698421436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12698421436² (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 (12698421431) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 38714536 + ... + 38714863.

It is an arithmetic number, because the mean of its divisors is an integer number (1897020300).

Almost surely, 2^12698421436 is an apocalyptic number.

It is an amenable number.

12698421436 is a deficient number, since it is larger than the sum of its proper divisors (10065822164).

12698421436 is a wasteful number, since it uses less digits than its factorization.

12698421436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77429444 (or 77429442 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The spelling of 12698421436 in words is "twelve billion, six hundred ninety-eight million, four hundred twenty-one thousand, four hundred thirty-six".