194426809001 has 4 divisors (see below), whose sum is σ = 194617611600. Its totient is φ = 194236006404.

The previous prime is 194426808997. The next prime is 194426809067. The reversal of 194426809001 is 100908624491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100908624491 = 67 ⋅1506098873.

It is a cyclic number.

It is not a de Polignac number, because 194426809001 - 2² = 194426808997 is a prime.

It is a super-2 number, since 2×194426809001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194426829001) 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, 95399771 + ... + 95401808.

It is an arithmetic number, because the mean of its divisors is an integer number (48654402900).

Almost surely, 2^194426809001 is an apocalyptic number.

It is an amenable number.

194426809001 is a deficient number, since it is larger than the sum of its proper divisors (190802599).

194426809001 is a wasteful number, since it uses less digits than its factorization.

194426809001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190802598.

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 194426809001 in words is "one hundred ninety-four billion, four hundred twenty-six million, eight hundred nine thousand, one".