12269938851 has 24 divisors (see below), whose sum is σ = 17822170080. Its totient is φ = 8134390656.

The previous prime is 12269938847. The next prime is 12269938861. The reversal of 12269938851 is 15883996221.

12269938851 is a `hidden beast` number, since 122 + 6 + 99 + 388 + 51 = 666.

12269938851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12269938851 - 2² = 12269938847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12269938861) 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 23 ways as a sum of consecutive naturals, for example, 1961010 + ... + 1967256.

It is an arithmetic number, because the mean of its divisors is an integer number (742590420).

Almost surely, 2^12269938851 is an apocalyptic number.

12269938851 is a deficient number, since it is larger than the sum of its proper divisors (5552231229).

12269938851 is a wasteful number, since it uses less digits than its factorization.

12269938851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7435 (or 7432 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The spelling of 12269938851 in words is "twelve billion, two hundred sixty-nine million, nine hundred thirty-eight thousand, eight hundred fifty-one".