194450694338 has 4 divisors (see below), whose sum is σ = 291676041510. Its totient is φ = 97225347168.

The previous prime is 194450694337. The next prime is 194450694359. The reversal of 194450694338 is 833496054491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 833496054491 = 6263 ⋅133082557.

It can be written as a sum of positive squares in only one way, i.e., 187413665569 + 7037028769 = 432913^2 + 83887^2 .

It is a super-2 number, since 2×194450694338² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (194450694337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48612673583 + ... + 48612673586.

Almost surely, 2^194450694338 is an apocalyptic number.

194450694338 is a deficient number, since it is larger than the sum of its proper divisors (97225347172).

194450694338 is an equidigital number, since it uses as much as digits as its factorization.

194450694338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97225347171.

The product of its (nonzero) digits is 11197440, while the sum is 56.

The spelling of 194450694338 in words is "one hundred ninety-four billion, four hundred fifty million, six hundred ninety-four thousand, three hundred thirty-eight".