13171691067738 has 48 divisors (see below), whose sum is σ = 31774684939200. Its totient is φ = 3565269758592.

The previous prime is 13171691067713. The next prime is 13171691067767. The reversal of 13171691067738 is 83776019617131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 434350063 + ... + 434380386.

It is an arithmetic number, because the mean of its divisors is an integer number (661972602900).

Almost surely, 2^{13171691067738} is an apocalyptic number.

13171691067738 is an abundant number, since it is smaller than the sum of its proper divisors (18602993871462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13171691067738 is a wasteful number, since it uses less digits than its factorization.

13171691067738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868730499 (or 868730480 counting only the distinct ones).

The product of its (nonzero) digits is 8001504, while the sum is 60.

The spelling of 13171691067738 in words is "thirteen trillion, one hundred seventy-one billion, six hundred ninety-one million, sixty-seven thousand, seven hundred thirty-eight".