194465582489 has 8 divisors (see below), whose sum is σ = 201919149000. Its totient is φ = 187061873152.

The previous prime is 194465582473. The next prime is 194465582573. The reversal of 194465582489 is 984285564491.

194465582489 is digitally balanced in base 2, 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 4 ways, for example, as 2428814089 + 192036768400 = 49283^2 + 438220^2 .

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 194465582489 - 2⁴ = 194465582473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194464582489) 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, 12456344 + ... + 12471945.

It is an arithmetic number, because the mean of its divisors is an integer number (25239893625).

Almost surely, 2^194465582489 is an apocalyptic number.

It is an amenable number.

194465582489 is a deficient number, since it is larger than the sum of its proper divisors (7453566511).

194465582489 is a wasteful number, since it uses less digits than its factorization.

194465582489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24928587.

The product of its digits is 99532800, while the sum is 65.

The spelling of 194465582489 in words is "one hundred ninety-four billion, four hundred sixty-five million, five hundred eighty-two thousand, four hundred eighty-nine".