194856913475 has 48 divisors (see below), whose sum is σ = 290777817600. Its totient is φ = 126538433280.

The previous prime is 194856913463. The next prime is 194856913483. The reversal of 194856913475 is 574319658491.

It is a happy number.

It is a Cunningham number, because it is equal to 441426²-1.

It is a de Polignac number, because none of the positive numbers 2^k-194856913475 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11026847 + ... + 11044503.

It is an arithmetic number, because the mean of its divisors is an integer number (6057871200).

Almost surely, 2^194856913475 is an apocalyptic number.

194856913475 is a deficient number, since it is larger than the sum of its proper divisors (95920904125).

194856913475 is a wasteful number, since it uses less digits than its factorization.

194856913475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21012 (or 21007 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 62.

The spelling of 194856913475 in words is "one hundred ninety-four billion, eight hundred fifty-six million, nine hundred thirteen thousand, four hundred seventy-five".