17942294881 has 16 divisors (see below), whose sum is σ = 20750329600. Its totient is φ = 15196559040.

The previous prime is 17942294879. The next prime is 17942294941. The reversal of 17942294881 is 18849224971.

It is a cyclic number.

It is not a de Polignac number, because 17942294881 - 2¹ = 17942294879 is a prime.

It is a super-2 number, since 2×17942294881² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (17942294081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153820 + ... + 244018.

It is an arithmetic number, because the mean of its divisors is an integer number (1296895600).

Almost surely, 2^17942294881 is an apocalyptic number.

It is an amenable number.

17942294881 is a deficient number, since it is larger than the sum of its proper divisors (2808034719).

17942294881 is a wasteful number, since it uses less digits than its factorization.

17942294881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90544.

The product of its digits is 2322432, while the sum is 55.

The spelling of 17942294881 in words is "seventeen billion, nine hundred forty-two million, two hundred ninety-four thousand, eight hundred eighty-one".