13444691358 has 16 divisors (see below), whose sum is σ = 30730723200. Its totient is φ = 3841340376.

The previous prime is 13444691357. The next prime is 13444691371. The reversal of 13444691358 is 85319644431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13444691357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160055808 + ... + 160055891.

It is an arithmetic number, because the mean of its divisors is an integer number (1920670200).

Almost surely, 2^13444691358 is an apocalyptic number.

13444691358 is an abundant number, since it is smaller than the sum of its proper divisors (17286031842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13444691358 is a wasteful number, since it uses less digits than its factorization.

13444691358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320111711.

The product of its digits is 1244160, while the sum is 48.

The spelling of 13444691358 in words is "thirteen billion, four hundred forty-four million, six hundred ninety-one thousand, three hundred fifty-eight".