194258442620 has 24 divisors (see below), whose sum is σ = 445028432688. Its totient is φ = 70639433600.

The previous prime is 194258442611. The next prime is 194258442641. The reversal of 194258442620 is 26244852491.

It is a congruent number.

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, 441496241 + ... + 441496680.

It is an arithmetic number, because the mean of its divisors is an integer number (18542851362).

Almost surely, 2^194258442620 is an apocalyptic number.

194258442620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194258442620 is an abundant number, since it is smaller than the sum of its proper divisors (250769990068).

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

194258442620 is a wasteful number, since it uses less digits than its factorization.

194258442620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882992941 (or 882992939 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 47.

The spelling of 194258442620 in words is "one hundred ninety-four billion, two hundred fifty-eight million, four hundred forty-two thousand, six hundred twenty".