17942981722 has 32 divisors (see below), whose sum is σ = 27938004480. Its totient is φ = 8633701440.

The previous prime is 17942981717. The next prime is 17942981731. The reversal of 17942981722 is 22718924971.

It is a self number, because there is not a number n which added to its sum of digits gives 17942981722.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10749904 + ... + 10751572.

It is an arithmetic number, because the mean of its divisors is an integer number (873062640).

Almost surely, 2^17942981722 is an apocalyptic number.

17942981722 is a deficient number, since it is larger than the sum of its proper divisors (9995022758).

17942981722 is a wasteful number, since it uses less digits than its factorization.

17942981722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566.

The product of its digits is 1016064, while the sum is 52.

The spelling of 17942981722 in words is "seventeen billion, nine hundred forty-two million, nine hundred eighty-one thousand, seven hundred twenty-two".