12445779529 has 8 divisors (see below), whose sum is σ = 12898448640. Its totient is φ = 11996310000.

The previous prime is 12445779523. The next prime is 12445779539. The reversal of 12445779529 is 92597754421.

12445779529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12445779529 - 2³¹ = 10298295881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12445779529.

It is not an unprimeable number, because it can be changed into a prime (12445779523) 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 7 ways as a sum of consecutive naturals, for example, 791974 + ... + 807535.

It is an arithmetic number, because the mean of its divisors is an integer number (1612306080).

Almost surely, 2^12445779529 is an apocalyptic number.

It is an amenable number.

12445779529 is a deficient number, since it is larger than the sum of its proper divisors (452669111).

12445779529 is a wasteful number, since it uses less digits than its factorization.

12445779529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599791.

The product of its digits is 6350400, while the sum is 55.

The spelling of 12445779529 in words is "twelve billion, four hundred forty-five million, seven hundred seventy-nine thousand, five hundred twenty-nine".