4173561491 has 8 divisors (see below), whose sum is σ = 4598056368. Its totient is φ = 3756580000.

The previous prime is 4173561463. The next prime is 4173561533. The reversal of 4173561491 is 1941653714.

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

It is a cyclic number.

It is not a de Polignac number, because 4173561491 - 2¹⁴ = 4173545107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4173561401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1877180 + ... + 1879401.

It is an arithmetic number, because the mean of its divisors is an integer number (574757046).

Almost surely, 2^4173561491 is an apocalyptic number.

4173561491 is a deficient number, since it is larger than the sum of its proper divisors (424494877).

4173561491 is a wasteful number, since it uses less digits than its factorization.

4173561491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3756693.

The product of its digits is 90720, while the sum is 41.

The square root of 4173561491 is about 64603.1074407416. The cubic root of 4173561491 is about 1610.0360691738.

The spelling of 4173561491 in words is "four billion, one hundred seventy-three million, five hundred sixty-one thousand, four hundred ninety-one".