194499153426 has 8 divisors (see below), whose sum is σ = 388998306864. Its totient is φ = 64833051140.

The previous prime is 194499153421. The next prime is 194499153451. The reversal of 194499153426 is 624351994491.

It is a happy number.

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

194499153426 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (194499153421) 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, 16208262780 + ... + 16208262791.

It is an arithmetic number, because the mean of its divisors is an integer number (48624788358).

Almost surely, 2^194499153426 is an apocalyptic number.

194499153426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

194499153426 is a wasteful number, since it uses less digits than its factorization.

194499153426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32416525576.

The product of its digits is 8398080, while the sum is 57.

The spelling of 194499153426 in words is "one hundred ninety-four billion, four hundred ninety-nine million, one hundred fifty-three thousand, four hundred twenty-six".