209298609401 has 8 divisors (see below), whose sum is σ = 245663232960. Its totient is φ = 174550191408.

The previous prime is 209298609391. The next prime is 209298609413. The reversal of 209298609401 is 104906892902.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 209298609401 - 2¹⁰ = 209298608377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 209298609401.

It is not an unprimeable number, because it can be changed into a prime (209298609101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404051111 + ... + 404051628.

It is an arithmetic number, because the mean of its divisors is an integer number (30707904120).

Almost surely, 2^209298609401 is an apocalyptic number.

It is an amenable number.

209298609401 is a deficient number, since it is larger than the sum of its proper divisors (36364623559).

209298609401 is an equidigital number, since it uses as much as digits as its factorization.

209298609401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808102783.

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 209298609401 in words is "two hundred nine billion, two hundred ninety-eight million, six hundred nine thousand, four hundred one".