14138491729 has 4 divisors (see below), whose sum is σ = 14147346484. Its totient is φ = 14129636976.

The previous prime is 14138491699. The next prime is 14138491739. The reversal of 14138491729 is 92719483141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92719483141 = 431 ⋅215126411.

It can be written as a sum of positive squares in 2 ways, for example, as 7290598225 + 6847893504 = 85385^2 + 82752^2 .

It is a cyclic number.

It is not a de Polignac number, because 14138491729 - 2¹³ = 14138483537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14138491739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4424982 + ... + 4428175.

It is an arithmetic number, because the mean of its divisors is an integer number (3536836621).

Almost surely, 2^14138491729 is an apocalyptic number.

It is an amenable number.

14138491729 is a deficient number, since it is larger than the sum of its proper divisors (8854755).

14138491729 is an equidigital number, since it uses as much as digits as its factorization.

14138491729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8854754.

The product of its digits is 435456, while the sum is 49.

The spelling of 14138491729 in words is "fourteen billion, one hundred thirty-eight million, four hundred ninety-one thousand, seven hundred twenty-nine".