194902904208 has 80 divisors (see below), whose sum is σ = 510295464000. Its totient is φ = 64093962240.

The previous prime is 194902904201. The next prime is 194902904233. The reversal of 194902904208 is 802409209491.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (194902904201) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1867323 + ... + 1968933.

It is an arithmetic number, because the mean of its divisors is an integer number (6378693300).

Almost surely, 2^194902904208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194902904208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255147732000).

194902904208 is an abundant number, since it is smaller than the sum of its proper divisors (315392559792).

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

194902904208 is a wasteful number, since it uses less digits than its factorization.

194902904208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102160 (or 102154 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 194902904208 in words is "one hundred ninety-four billion, nine hundred two million, nine hundred four thousand, two hundred eight".