194933744854 has 4 divisors (see below), whose sum is σ = 292400617284. Its totient is φ = 97466872426.

The previous prime is 194933744851. The next prime is 194933744861. The reversal of 194933744854 is 458447339491.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 194933744792 and 194933744801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194933744851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48733436212 + ... + 48733436215.

It is an arithmetic number, because the mean of its divisors is an integer number (73100154321).

Almost surely, 2^194933744854 is an apocalyptic number.

194933744854 is a deficient number, since it is larger than the sum of its proper divisors (97466872430).

194933744854 is an equidigital number, since it uses as much as digits as its factorization.

194933744854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97466872429.

The product of its digits is 52254720, while the sum is 61.

The spelling of 194933744854 in words is "one hundred ninety-four billion, nine hundred thirty-three million, seven hundred forty-four thousand, eight hundred fifty-four".