13493744739431 has 16 divisors (see below), whose sum is σ = 16029526838400. Its totient is φ = 11220668776800.

The previous prime is 13493744739407. The next prime is 13493744739479.

It is a happy number.

13493744739431 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13493744739431 is a prime.

It is a super-2 number, since 2×13493744739431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13493744739491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1113155525 + ... + 1113167646.

It is an arithmetic number, because the mean of its divisors is an integer number (1001845427400).

Almost surely, 2^{13493744739431} is an apocalyptic number.

13493744739431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13493744739431 is a deficient number, since it is larger than the sum of its proper divisors (2535782098969).

13493744739431 is a wasteful number, since it uses less digits than its factorization.

13493744739431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226323230.

The product of its digits is 82301184, while the sum is 62.

The spelling of 13493744739431 in words is "thirteen trillion, four hundred ninety-three billion, seven hundred forty-four million, seven hundred thirty-nine thousand, four hundred thirty-one".