17944491608 has 24 divisors (see below), whose sum is σ = 34766300340. Its totient is φ = 8682814800.

The previous prime is 17944491599. The next prime is 17944491793. The reversal of 17944491608 is 80619444971.

It is a self number, because there is not a number n which added to its sum of digits gives 17944491608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1159358 + ... + 1174733.

Almost surely, 2^17944491608 is an apocalyptic number.

It is an amenable number.

17944491608 is a deficient number, since it is larger than the sum of its proper divisors (16821808732).

17944491608 is a wasteful number, since it uses less digits than its factorization.

17944491608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334159 (or 2334124 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 17944491608 in words is "seventeen billion, nine hundred forty-four million, four hundred ninety-one thousand, six hundred eight".