13681071936243 has 32 divisors (see below), whose sum is σ = 21394434240000. Its totient is φ = 8616608158176.

The previous prime is 13681071936241. The next prime is 13681071936299. The reversal of 13681071936243 is 34263917018631.

13681071936243 is a `hidden beast` number, since 1 + 3 + 6 + 8 + 1 + 0 + 7 + 1 + 9 + 3 + 624 + 3 = 666.

It is not a de Polignac number, because 13681071936243 - 2¹ = 13681071936241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13681071936243.

It is not an unprimeable number, because it can be changed into a prime (13681071936241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36958948 + ... + 37327281.

It is an arithmetic number, because the mean of its divisors is an integer number (668576070000).

Almost surely, 2^{13681071936243} is an apocalyptic number.

13681071936243 is a deficient number, since it is larger than the sum of its proper divisors (7713362303757).

13681071936243 is a wasteful number, since it uses less digits than its factorization.

13681071936243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74286616 (or 74286610 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 13681071936243 in words is "thirteen trillion, six hundred eighty-one billion, seventy-one million, nine hundred thirty-six thousand, two hundred forty-three".