17685342842 has 32 divisors (see below), whose sum is σ = 28610625600. Its totient is φ = 8173122048.

The previous prime is 17685342757. The next prime is 17685342853. The reversal of 17685342842 is 24824358671.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335978 + ... + 385034.

It is an arithmetic number, because the mean of its divisors is an integer number (894082050).

Almost surely, 2^17685342842 is an apocalyptic number.

17685342842 is a deficient number, since it is larger than the sum of its proper divisors (10925282758).

17685342842 is a wasteful number, since it uses less digits than its factorization.

17685342842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49310.

The product of its digits is 2580480, while the sum is 50.

The spelling of 17685342842 in words is "seventeen billion, six hundred eighty-five million, three hundred forty-two thousand, eight hundred forty-two".