194821512104 has 32 divisors (see below), whose sum is σ = 377951335200. Its totient is φ = 94035641280.

The previous prime is 194821512103. The next prime is 194821512203. The reversal of 194821512104 is 401215128491.

It is not an unprimeable number, because it can be changed into a prime (194821512103) 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, 1344179 + ... + 1482045.

It is an arithmetic number, because the mean of its divisors is an integer number (11810979225).

Almost surely, 2^194821512104 is an apocalyptic number.

It is an amenable number.

194821512104 is a deficient number, since it is larger than the sum of its proper divisors (183129823096).

194821512104 is a wasteful number, since it uses less digits than its factorization.

194821512104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143993 (or 143989 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 38.

The spelling of 194821512104 in words is "one hundred ninety-four billion, eight hundred twenty-one million, five hundred twelve thousand, one hundred four".