17139974338729 has 8 divisors (see below), whose sum is σ = 18698212483200. Its totient is φ = 15581745970800.

The previous prime is 17139974338709. The next prime is 17139974338757. The reversal of 17139974338729 is 92783347993171.

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 17139974338729 - 2¹³ = 17139974330537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17139974338709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1498059 + ... + 6043519.

It is an arithmetic number, because the mean of its divisors is an integer number (2337276560400).

Almost surely, 2^{17139974338729} is an apocalyptic number.

It is an amenable number.

17139974338729 is a deficient number, since it is larger than the sum of its proper divisors (1558238144471).

17139974338729 is a wasteful number, since it uses less digits than its factorization.

17139974338729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4888271.

The product of its digits is 432081216, while the sum is 73.

The spelling of 17139974338729 in words is "seventeen trillion, one hundred thirty-nine billion, nine hundred seventy-four million, three hundred thirty-eight thousand, seven hundred twenty-nine".