194999998453398 has 24 divisors (see below), whose sum is σ = 428287667838888. Its totient is φ = 64109588532192.

The previous prime is 194999998453297. The next prime is 194999998453451. The reversal of 194999998453398 is 893354899999491.

194999998453398 is a `hidden beast` number, since 1 + 9 + 4 + 99 + 99 + 98 + 4 + 5 + 339 + 8 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 194999998453299 and 194999998453308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74200911340 + ... + 74200913967.

It is an arithmetic number, because the mean of its divisors is an integer number (17845319493287).

Almost surely, 2^{194999998453398} is an apocalyptic number.

194999998453398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

194999998453398 is an abundant number, since it is smaller than the sum of its proper divisors (233287669385490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

194999998453398 is a wasteful number, since it uses less digits than its factorization.

194999998453398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148401825388 (or 148401825385 counting only the distinct ones).

The product of its digits is 220399211520, while the sum is 99.

The spelling of 194999998453398 in words is "one hundred ninety-four trillion, nine hundred ninety-nine billion, nine hundred ninety-eight million, four hundred fifty-three thousand, three hundred ninety-eight".