3561605644173 has 8 divisors (see below), whose sum is σ = 4761538914528. Its totient is φ = 2368038068304.

The previous prime is 3561605644109. The next prime is 3561605644211. The reversal of 3561605644173 is 3714465061653.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3561605644173 - 2⁶ = 3561605644109 is a prime.

It is a super-3 number, since 3×3561605644173³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3561605644573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1591422315 + ... + 1591424552.

It is an arithmetic number, because the mean of its divisors is an integer number (595192364316).

Almost surely, 2^{3561605644173} is an apocalyptic number.

It is an amenable number.

3561605644173 is a deficient number, since it is larger than the sum of its proper divisors (1199933270355).

3561605644173 is a wasteful number, since it uses less digits than its factorization.

3561605644173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182847243.

The product of its (nonzero) digits is 5443200, while the sum is 51.

The spelling of 3561605644173 in words is "three trillion, five hundred sixty-one billion, six hundred five million, six hundred forty-four thousand, one hundred seventy-three".