13891854257289 has 6 divisors (see below), whose sum is σ = 20066011704986. Its totient is φ = 9261236171520.

The previous prime is 13891854257221. The next prime is 13891854257299. The reversal of 13891854257289 is 98275245819831.

13891854257289 is a `hidden beast` number, since 1 + 3 + 8 + 9 + 1 + 8 + 5 + 42 + 572 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11712082533264 + 2179771724025 = 3422292^2 + 1476405^2 .

It is not a de Polignac number, because 13891854257289 - 2²⁸ = 13891585821833 is a prime.

It is a super-2 number, since 2×13891854257289² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13891854257299) 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 5 ways as a sum of consecutive naturals, for example, 771769680952 + ... + 771769680969.

Almost surely, 2^{13891854257289} is an apocalyptic number.

It is an amenable number.

13891854257289 is a deficient number, since it is larger than the sum of its proper divisors (6174157447697).

13891854257289 is a wasteful number, since it uses less digits than its factorization.

13891854257289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543539361927 (or 1543539361924 counting only the distinct ones).

The product of its digits is 348364800, while the sum is 72.

The spelling of 13891854257289 in words is "thirteen trillion, eight hundred ninety-one billion, eight hundred fifty-four million, two hundred fifty-seven thousand, two hundred eighty-nine".