12279688453 has 4 divisors (see below), whose sum is σ = 12280002988. Its totient is φ = 12279373920.

The previous prime is 12279688451. The next prime is 12279688459. The reversal of 12279688453 is 35488697221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35488697221 = 41 ⋅865577981.

It can be written as a sum of positive squares in 2 ways, for example, as 8784750529 + 3494937924 = 93727^2 + 59118^2 .

It is a cyclic number.

It is not a de Polignac number, because 12279688453 - 2¹ = 12279688451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12279688394 and 12279688403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12279688451) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 88758 + ... + 180103.

It is an arithmetic number, because the mean of its divisors is an integer number (3070000747).

Almost surely, 2^12279688453 is an apocalyptic number.

It is an amenable number.

12279688453 is a deficient number, since it is larger than the sum of its proper divisors (314535).

12279688453 is an equidigital number, since it uses as much as digits as its factorization.

12279688453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314534.

The product of its digits is 5806080, while the sum is 55.

The spelling of 12279688453 in words is "twelve billion, two hundred seventy-nine million, six hundred eighty-eight thousand, four hundred fifty-three".