6194409166449 has 45 divisors (see below), whose sum is σ = 10438722009209. Its totient is φ = 3539453316840.

The previous prime is 6194409166381. The next prime is 6194409166457. The reversal of 6194409166449 is 9446619044916.

The square root of 6194409166449 is 2488857.

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

6194409166449 is a `hidden beast` number, since 6 + 1 + 9 + 4 + 40 + 91 + 66 + 449 = 666.

It is not a de Polignac number, because 6194409166449 - 2¹¹ = 6194409164401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6194409166469) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 365853514 + ... + 365870444.

Almost surely, 2^{6194409166449} is an apocalyptic number.

6194409166449 is the 2488857-th square number.

6194409166449 is the 1244429-th centered octagonal number.

It is an amenable number.

6194409166449 is a deficient number, since it is larger than the sum of its proper divisors (4244312842760).

6194409166449 is an frugal number, since it uses more digits than its factorization.

6194409166449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33896 (or 16941 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 63.

The spelling of 6194409166449 in words is "six trillion, one hundred ninety-four billion, four hundred nine million, one hundred sixty-six thousand, four hundred forty-nine".