194105449476 has 81 divisors (see below), whose sum is σ = 496421666559. Its totient is φ = 63950197248.

The previous prime is 194105449457. The next prime is 194105449511. The reversal of 194105449476 is 674944501491.

It is a happy number.

The square root of 194105449476 is 440574.

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

194105449476 is a `hidden beast` number, since 1 + 9 + 4 + 1 + 0 + 544 + 94 + 7 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 892455876 + 193212993600 = 29874^2 + 439560^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 256413690 + ... + 256414446.

Almost surely, 2^194105449476 is an apocalyptic number.

194105449476 is the 440574-th square number.

It is an amenable number.

194105449476 is an abundant number, since it is smaller than the sum of its proper divisors (302316217083).

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

194105449476 is an frugal number, since it uses more digits than its factorization.

194105449476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718 (or 859 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 194105449476 in words is "one hundred ninety-four billion, one hundred five million, four hundred forty-nine thousand, four hundred seventy-six".