194991035374801 has 8 divisors (see below), whose sum is σ = 195350963711904. Its totient is φ = 194631155214240.

The previous prime is 194991035374787. The next prime is 194991035374813. The reversal of 194991035374801 is 108473530199491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 194991035374801 - 2²⁵ = 194991001820369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194991035374831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3936780 + ... + 20136541.

It is an arithmetic number, because the mean of its divisors is an integer number (24418870463988).

Almost surely, 2^{194991035374801} is an apocalyptic number.

It is an amenable number.

194991035374801 is a deficient number, since it is larger than the sum of its proper divisors (359928337103).

194991035374801 is a wasteful number, since it uses less digits than its factorization.

194991035374801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24088271.

The product of its (nonzero) digits is 29393280, while the sum is 64.

The spelling of 194991035374801 in words is "one hundred ninety-four trillion, nine hundred ninety-one billion, thirty-five million, three hundred seventy-four thousand, eight hundred one".