194328701990 has 8 divisors (see below), whose sum is σ = 349791663600. Its totient is φ = 77731480792.

The previous prime is 194328701953. The next prime is 194328701993. The reversal of 194328701990 is 99107823491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194328701993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9716435090 + ... + 9716435109.

It is an arithmetic number, because the mean of its divisors is an integer number (43723957950).

Almost surely, 2^194328701990 is an apocalyptic number.

194328701990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194328701990 is a deficient number, since it is larger than the sum of its proper divisors (155462961610).

194328701990 is a wasteful number, since it uses less digits than its factorization.

194328701990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19432870206.

The product of its (nonzero) digits is 979776, while the sum is 53.

The spelling of 194328701990 in words is "one hundred ninety-four billion, three hundred twenty-eight million, seven hundred one thousand, nine hundred ninety".