208475996693 has 8 divisors (see below), whose sum is σ = 211189680000. Its totient is φ = 205764182208.

The previous prime is 208475996669. The next prime is 208475996713. The reversal of 208475996693 is 396699574802.

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 208475996693 - 2⁸ = 208475996437 is a prime.

It is a super-4 number, since 4×208475996693⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208475990693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241943 + ... + 689556.

It is an arithmetic number, because the mean of its divisors is an integer number (26398710000).

Almost surely, 2^208475996693 is an apocalyptic number.

It is an amenable number.

208475996693 is a deficient number, since it is larger than the sum of its proper divisors (2713683307).

208475996693 is an equidigital number, since it uses as much as digits as its factorization.

208475996693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934411.

The product of its (nonzero) digits is 176359680, while the sum is 68.

The spelling of 208475996693 in words is "two hundred eight billion, four hundred seventy-five million, nine hundred ninety-six thousand, six hundred ninety-three".