12738331795 has 24 divisors (see below), whose sum is σ = 18827658144. Its totient is φ = 8221038336.

The previous prime is 12738331789. The next prime is 12738331819. The reversal of 12738331795 is 59713383721.

It is a happy number.

12738331795 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12738331795 - 2⁷ = 12738331667 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1525047 + ... + 1533376.

It is an arithmetic number, because the mean of its divisors is an integer number (784485756).

Almost surely, 2^12738331795 is an apocalyptic number.

12738331795 is a deficient number, since it is larger than the sum of its proper divisors (6089326349).

12738331795 is a wasteful number, since it uses less digits than its factorization.

12738331795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058459 (or 3058452 counting only the distinct ones).

The product of its digits is 952560, while the sum is 49.

The spelling of 12738331795 in words is "twelve billion, seven hundred thirty-eight million, three hundred thirty-one thousand, seven hundred ninety-five".