194464819325 has 24 divisors (see below), whose sum is σ = 285087348480. Its totient is φ = 128749118400.

The previous prime is 194464819321. The next prime is 194464819363. The reversal of 194464819325 is 523918464491.

It is not a de Polignac number, because 194464819325 - 2² = 194464819321 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194464819321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19154021 + ... + 19164170.

It is an arithmetic number, because the mean of its divisors is an integer number (11878639520).

Almost surely, 2^194464819325 is an apocalyptic number.

It is an amenable number.

194464819325 is a deficient number, since it is larger than the sum of its proper divisors (90622529155).

194464819325 is a wasteful number, since it uses less digits than its factorization.

194464819325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38318237 (or 38318232 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 56.

The spelling of 194464819325 in words is "one hundred ninety-four billion, four hundred sixty-four million, eight hundred nineteen thousand, three hundred twenty-five".