13144273905 has 32 divisors (see below), whose sum is σ = 24046219008. Its totient is φ = 6006067200.

The previous prime is 13144273903. The next prime is 13144273937. The reversal of 13144273905 is 50937244131.

It is not a de Polignac number, because 13144273905 - 2¹ = 13144273903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13144273903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212065 + ... + 266945.

It is an arithmetic number, because the mean of its divisors is an integer number (751444344).

Almost surely, 2^13144273905 is an apocalyptic number.

13144273905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13144273905 is a deficient number, since it is larger than the sum of its proper divisors (10901945103).

13144273905 is a wasteful number, since it uses less digits than its factorization.

13144273905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57177.

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 13144273905 in words is "thirteen billion, one hundred forty-four million, two hundred seventy-three thousand, nine hundred five".