17120681871 has 8 divisors (see below), whose sum is σ = 22829031984. Its totient is φ = 11413059840.

The previous prime is 17120681857. The next prime is 17120681933. The reversal of 17120681871 is 17818602171.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 17120681871 - 2⁵ = 17120681839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17120681471) 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, 124560 + ... + 223061.

It is an arithmetic number, because the mean of its divisors is an integer number (2853628998).

Almost surely, 2^17120681871 is an apocalyptic number.

17120681871 is a deficient number, since it is larger than the sum of its proper divisors (5708350113).

17120681871 is a wasteful number, since it uses less digits than its factorization.

17120681871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364041.

The product of its (nonzero) digits is 37632, while the sum is 42.

The spelling of 17120681871 in words is "seventeen billion, one hundred twenty million, six hundred eighty-one thousand, eight hundred seventy-one".