12078449603 has 16 divisors (see below), whose sum is σ = 13441698816. Its totient is φ = 10761603840.

The previous prime is 12078449599. The next prime is 12078449633. The reversal of 12078449603 is 30694487021.

It is a Cunningham number, because it is equal to 109902²-1.

It is a cyclic number.

It is not a de Polignac number, because 12078449603 - 2² = 12078449599 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12078449633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54950 + ... + 164852.

It is an arithmetic number, because the mean of its divisors is an integer number (840106176).

Almost surely, 2^12078449603 is an apocalyptic number.

12078449603 is a deficient number, since it is larger than the sum of its proper divisors (1363249213).

12078449603 is a wasteful number, since it uses less digits than its factorization.

12078449603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110114.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 12078449603 in words is "twelve billion, seventy-eight million, four hundred forty-nine thousand, six hundred three".