13851581791351 has 6 divisors (see below), whose sum is σ = 14714310069320. Its totient is φ = 13036782862176.

The previous prime is 13851581791339. The next prime is 13851581791417. The reversal of 13851581791351 is 15319718515831.

It is a happy number.

It is not a de Polignac number, because 13851581791351 - 2²⁹ = 13851044920439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13851581791301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23964674091 + ... + 23964674668.

Almost surely, 2^{13851581791351} is an apocalyptic number.

13851581791351 is a deficient number, since it is larger than the sum of its proper divisors (862728277969).

13851581791351 is an equidigital number, since it uses as much as digits as its factorization.

13851581791351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47929348793 (or 47929348776 counting only the distinct ones).

The product of its digits is 4536000, while the sum is 58.

The spelling of 13851581791351 in words is "thirteen trillion, eight hundred fifty-one billion, five hundred eighty-one million, seven hundred ninety-one thousand, three hundred fifty-one".