194494608050 has 54 divisors (see below), whose sum is σ = 369899506557. Its totient is φ = 76085190480.

The previous prime is 194494608041. The next prime is 194494608109. The reversal of 194494608050 is 50806494491.

It can be written as a sum of positive squares in 2 ways, for example, as 190604715889 + 3889892161 = 436583^2 + 62369^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=311845.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 194494608050.

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, 146566487 + ... + 146567813.

Almost surely, 2^194494608050 is an apocalyptic number.

194494608050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194494608050 is a deficient number, since it is larger than the sum of its proper divisors (175404898507).

194494608050 is an frugal number, since it uses more digits than its factorization.

194494608050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760 (or 1381 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

Multiplying 194494608050 by its sum of digits (50), we get a square (9724730402500 = 3118450²).

194494608050 divided by its sum of digits (50) gives a square (3889892161 = 62369²).

The spelling of 194494608050 in words is "one hundred ninety-four billion, four hundred ninety-four million, six hundred eight thousand, fifty".