208063273993 has 4 divisors (see below), whose sum is σ = 208064787840. Its totient is φ = 208061760148.

The previous prime is 208063273907. The next prime is 208063274059. The reversal of 208063273993 is 399372360802.

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.

It is a cyclic number.

It is not a de Polignac number, because 208063273993 - 2³⁷ = 70624320521 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 208063273993.

It is not an unprimeable number, because it can be changed into a prime (208063273193) 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, 527605 + ... + 833362.

It is an arithmetic number, because the mean of its divisors is an integer number (52016196960).

Almost surely, 2^208063273993 is an apocalyptic number.

It is an amenable number.

208063273993 is a deficient number, since it is larger than the sum of its proper divisors (1513847).

208063273993 is a wasteful number, since it uses less digits than its factorization.

208063273993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513846.

The product of its (nonzero) digits is 2939328, while the sum is 52.

The spelling of 208063273993 in words is "two hundred eight billion, sixty-three million, two hundred seventy-three thousand, nine hundred ninety-three".