409835994697 has 8 divisors (see below), whose sum is σ = 412233867144. Its totient is φ = 407438454528.

The previous prime is 409835994661. The next prime is 409835994703. The reversal of 409835994697 is 796499538904.

It can be written as a sum of positive squares in 4 ways, for example, as 94947794496 + 314888200201 = 308136^2 + 561149^2 .

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 409835994697 - 2⁷ = 409835994569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409835994497) 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, 2653633 + ... + 2803825.

It is an arithmetic number, because the mean of its divisors is an integer number (51529233393).

Almost surely, 2^409835994697 is an apocalyptic number.

It is an amenable number.

409835994697 is a deficient number, since it is larger than the sum of its proper divisors (2397872447).

409835994697 is a wasteful number, since it uses less digits than its factorization.

409835994697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166139.

The product of its (nonzero) digits is 529079040, while the sum is 73.

The spelling of 409835994697 in words is "four hundred nine billion, eight hundred thirty-five million, nine hundred ninety-four thousand, six hundred ninety-seven".