13851471523 has 8 divisors (see below), whose sum is σ = 14616864720. Its totient is φ = 13089715200.

The previous prime is 13851471509. The next prime is 13851471541. The reversal of 13851471523 is 32517415831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13851471523 - 2¹³ = 13851463331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13851471563) 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, 901390 + ... + 916627.

It is an arithmetic number, because the mean of its divisors is an integer number (1827108090).

Almost surely, 2^13851471523 is an apocalyptic number.

13851471523 is a deficient number, since it is larger than the sum of its proper divisors (765393197).

13851471523 is a wasteful number, since it uses less digits than its factorization.

13851471523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818437.

The product of its digits is 100800, while the sum is 40.

The spelling of 13851471523 in words is "thirteen billion, eight hundred fifty-one million, four hundred seventy-one thousand, five hundred twenty-three".