17957422806 has 16 divisors (see below), whose sum is σ = 36018350784. Its totient is φ = 5968556744.

The previous prime is 17957422801. The next prime is 17957422807. The reversal of 17957422806 is 60822475971.

It is a happy number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17957422801) 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, 4310460 + ... + 4314623.

It is an arithmetic number, because the mean of its divisors is an integer number (2251146924).

Almost surely, 2^17957422806 is an apocalyptic number.

17957422806 is an abundant number, since it is smaller than the sum of its proper divisors (18060927978).

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

17957422806 is a wasteful number, since it uses less digits than its factorization.

17957422806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8625435.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 17957422806 in words is "seventeen billion, nine hundred fifty-seven million, four hundred twenty-two thousand, eight hundred six".