13256278073 has 16 divisors (see below), whose sum is σ = 13850088000. Its totient is φ = 12672096192.

The previous prime is 13256278051. The next prime is 13256278103. The reversal of 13256278073 is 37087265231.

It is a cyclic number.

It is not a de Polignac number, because 13256278073 - 2¹⁰ = 13256277049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13256278573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1523411 + ... + 1532087.

It is an arithmetic number, because the mean of its divisors is an integer number (865630500).

Almost surely, 2^13256278073 is an apocalyptic number.

It is an amenable number.

13256278073 is a deficient number, since it is larger than the sum of its proper divisors (593809927).

13256278073 is a wasteful number, since it uses less digits than its factorization.

13256278073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9224.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 13256278073 in words is "thirteen billion, two hundred fifty-six million, two hundred seventy-eight thousand, seventy-three".