208829835123 has 32 divisors (see below), whose sum is σ = 345839155200. Its totient is φ = 109141416576.

The previous prime is 208829835119. The next prime is 208829835139. The reversal of 208829835123 is 321538928802.

It is a happy number.

It is not a de Polignac number, because 208829835123 - 2² = 208829835119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (208829835523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3479163 + ... + 3538676.

It is an arithmetic number, because the mean of its divisors is an integer number (10807473600).

Almost surely, 2^208829835123 is an apocalyptic number.

208829835123 is a deficient number, since it is larger than the sum of its proper divisors (137009320077).

208829835123 is a wasteful number, since it uses less digits than its factorization.

208829835123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7017971.

The product of its (nonzero) digits is 1658880, while the sum is 51.

The spelling of 208829835123 in words is "two hundred eight billion, eight hundred twenty-nine million, eight hundred thirty-five thousand, one hundred twenty-three".