194561200121044 has 12 divisors (see below), whose sum is σ = 343081200214368. Its totient is φ = 96538000059800.

The previous prime is 194561200121027. The next prime is 194561200121089. The reversal of 194561200121044 is 440121002165491.

It is a junction number, because it is equal to n+sod(n) for n = 194561200120988 and 194561200121006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185649999592 + ... + 185650000639.

It is an arithmetic number, because the mean of its divisors is an integer number (28590100017864).

Almost surely, 2^{194561200121044} is an apocalyptic number.

It is an amenable number.

194561200121044 is a deficient number, since it is larger than the sum of its proper divisors (148520000093324).

194561200121044 is a wasteful number, since it uses less digits than its factorization.

194561200121044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371300000366 (or 371300000364 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 194561200121044 in words is "one hundred ninety-four trillion, five hundred sixty-one billion, two hundred million, one hundred twenty-one thousand, forty-four".