209399059417 has 8 divisors (see below), whose sum is σ = 213275643840. Its totient is φ = 205548233520.

The previous prime is 209399059411. The next prime is 209399059423. The reversal of 209399059417 is 714950993902.

It is an interprime number because it is at equal distance from previous prime (209399059411) and next prime (209399059423).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-209399059417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (209399059411) 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, 6423223 + ... + 6455740.

It is an arithmetic number, because the mean of its divisors is an integer number (26659455480).

Almost surely, 2^209399059417 is an apocalyptic number.

It is an amenable number.

209399059417 is a deficient number, since it is larger than the sum of its proper divisors (3876584423).

209399059417 is a wasteful number, since it uses less digits than its factorization.

209399059417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12879263.

The product of its (nonzero) digits is 5511240, while the sum is 58.

The spelling of 209399059417 in words is "two hundred nine billion, three hundred ninety-nine million, fifty-nine thousand, four hundred seventeen".