206085449850 has 96 divisors (see below), whose sum is σ = 609500989440. Its totient is φ = 45057186240.

The previous prime is 206085449849. The next prime is 206085449861. The reversal of 206085449850 is 58944580602.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 206085449793 and 206085449802.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4242630 + ... + 4290929.

It is an arithmetic number, because the mean of its divisors is an integer number (6348968640).

Almost surely, 2^206085449850 is an apocalyptic number.

206085449850 is an abundant number, since it is smaller than the sum of its proper divisors (403415539590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206085449850 is a wasteful number, since it uses less digits than its factorization.

206085449850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8533604 (or 8533599 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 206085449850 in words is "two hundred six billion, eighty-five million, four hundred forty-nine thousand, eight hundred fifty".