13471844817431 has 24 divisors (see below), whose sum is σ = 18411072647184. Its totient is φ = 9690038225280.

The previous prime is 13471844817421. The next prime is 13471844817449.

13471844817431 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13471844817431 - 2⁶ = 13471844817367 is a prime.

It is a super-2 number, since 2×13471844817431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13471844817421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 961306310 + ... + 961320323.

It is an arithmetic number, because the mean of its divisors is an integer number (767128026966).

Almost surely, 2^{13471844817431} is an apocalyptic number.

13471844817431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13471844817431 is a deficient number, since it is larger than the sum of its proper divisors (4939227829753).

13471844817431 is a wasteful number, since it uses less digits than its factorization.

13471844817431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922626671 (or 1922626664 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 56.

The spelling of 13471844817431 in words is "thirteen trillion, four hundred seventy-one billion, eight hundred forty-four million, eight hundred seventeen thousand, four hundred thirty-one".