12269923678 has 4 divisors (see below), whose sum is σ = 18404885520. Its totient is φ = 6134961838.

The previous prime is 12269923651. The next prime is 12269923691. The reversal of 12269923678 is 87632996221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87632996221 = 19 ⋅4612262959.

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, 3067480918 + ... + 3067480921.

It is an arithmetic number, because the mean of its divisors is an integer number (4601221380).

Almost surely, 2^12269923678 is an apocalyptic number.

12269923678 is a deficient number, since it is larger than the sum of its proper divisors (6134961842).

12269923678 is an equidigital number, since it uses as much as digits as its factorization.

12269923678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6134961841.

The product of its digits is 3919104, while the sum is 55.

The spelling of 12269923678 in words is "twelve billion, two hundred sixty-nine million, nine hundred twenty-three thousand, six hundred seventy-eight".