12346279445 has 4 divisors (see below), whose sum is σ = 14815535340. Its totient is φ = 9877023552.

The previous prime is 12346279433. The next prime is 12346279453. The reversal of 12346279445 is 54497264321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6742708996 + 5603570449 = 82114^2 + 74857^2 .

It is a cyclic number.

It is not a de Polignac number, because 12346279445 - 2⁶ = 12346279381 is a prime.

It is a super-2 number, since 2×12346279445² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12346279445.

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 in 3 ways as a sum of consecutive naturals, for example, 1234627940 + ... + 1234627949.

It is an arithmetic number, because the mean of its divisors is an integer number (3703883835).

Almost surely, 2^12346279445 is an apocalyptic number.

It is an amenable number.

12346279445 is a deficient number, since it is larger than the sum of its proper divisors (2469255895).

12346279445 is an equidigital number, since it uses as much as digits as its factorization.

12346279445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469255894.

The product of its digits is 1451520, while the sum is 47.

The spelling of 12346279445 in words is "twelve billion, three hundred forty-six million, two hundred seventy-nine thousand, four hundred forty-five".