194309265397 has 16 divisors (see below), whose sum is σ = 211657561920. Its totient is φ = 177304989312.

The previous prime is 194309265347. The next prime is 194309265467. The reversal of 194309265397 is 793562903491.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 194309265397 - 2³⁵ = 159949527029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194309265347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5521018 + ... + 5556100.

It is an arithmetic number, because the mean of its divisors is an integer number (13228597620).

Almost surely, 2^194309265397 is an apocalyptic number.

It is an amenable number.

194309265397 is a deficient number, since it is larger than the sum of its proper divisors (17348296523).

194309265397 is a wasteful number, since it uses less digits than its factorization.

194309265397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39972.

The product of its (nonzero) digits is 11022480, while the sum is 58.

The spelling of 194309265397 in words is "one hundred ninety-four billion, three hundred nine million, two hundred sixty-five thousand, three hundred ninety-seven".