174421007668 has 6 divisors (see below), whose sum is σ = 305236763426. Its totient is φ = 87210503832.

The previous prime is 174421007659. The next prime is 174421007669. The reversal of 174421007668 is 866700124471.

It can be written as a sum of positive squares in only one way, i.e., 174112583824 + 308423844 = 417268^2 + 17562^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (174421007669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21802625955 + ... + 21802625962.

Almost surely, 2^174421007668 is an apocalyptic number.

It is an amenable number.

174421007668 is a deficient number, since it is larger than the sum of its proper divisors (130815755758).

174421007668 is a wasteful number, since it uses less digits than its factorization.

174421007668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43605251921 (or 43605251919 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 174421007668 in words is "one hundred seventy-four billion, four hundred twenty-one million, seven thousand, six hundred sixty-eight".