208793001823 has 16 divisors (see below), whose sum is σ = 250175494656. Its totient is φ = 170372996640.

The previous prime is 208793001797. The next prime is 208793001839. The reversal of 208793001823 is 328100397802.

It is not a de Polignac number, because 208793001823 - 2²⁹ = 208256130911 is a prime.

It is a super-2 number, since 2×208793001823² (a number of 23 digits) contains 22 as substring.

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 208793001823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208793001863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3039136 + ... + 3107077.

It is an arithmetic number, because the mean of its divisors is an integer number (15635968416).

Almost surely, 2^208793001823 is an apocalyptic number.

208793001823 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

208793001823 is a deficient number, since it is larger than the sum of its proper divisors (41382492833).

208793001823 is a wasteful number, since it uses less digits than its factorization.

208793001823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6146454.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 208793001823 in words is "two hundred eight billion, seven hundred ninety-three million, one thousand, eight hundred twenty-three".