173673894564 has 27 divisors (see below), whose sum is σ = 439015331937. Its totient is φ = 57890464704.

The previous prime is 173673894553. The next prime is 173673894593. The reversal of 173673894564 is 465498376371.

It is a happy number.

The square root of 173673894564 is 416742.

It is a perfect power (a square), and thus also a powerful number.

173673894564 is a `hidden beast` number, since 1 + 7 + 3 + 67 + 3 + 8 + 9 + 4 + 564 = 666.

173673894564 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 20486196900 + 153187697664 = 143130^2 + 391392^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2465724 + ... + 2535180.

Almost surely, 2^173673894564 is an apocalyptic number.

173673894564 is the 416742-nd square number.

It is an amenable number.

173673894564 is an abundant number, since it is smaller than the sum of its proper divisors (265341437373).

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

173673894564 is an frugal number, since it uses more digits than its factorization.

173673894564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138924 (or 69462 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 63.

The spelling of 173673894564 in words is "one hundred seventy-three billion, six hundred seventy-three million, eight hundred ninety-four thousand, five hundred sixty-four".