194789556912 has 40 divisors (see below), whose sum is σ = 503320674304. Its totient is φ = 64915101504.

The previous prime is 194789556877. The next prime is 194789556947. The reversal of 194789556912 is 219655987491.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (194789556877) and next prime (194789556947).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246448 + ... + 671055.

Almost surely, 2^194789556912 is an apocalyptic number.

194789556912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

194789556912 is an abundant number, since it is smaller than the sum of its proper divisors (308531117392).

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

194789556912 is a wasteful number, since it uses less digits than its factorization.

194789556912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921937 (or 921931 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 66.

The spelling of 194789556912 in words is "one hundred ninety-four billion, seven hundred eighty-nine million, five hundred fifty-six thousand, nine hundred twelve".