208413260906 has 16 divisors (see below), whose sum is σ = 320289362568. Its totient is φ = 101650848000.

The previous prime is 208413260893. The next prime is 208413260963. The reversal of 208413260906 is 609062314802.

208413260906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 99945131881 + 108468129025 = 316141^2 + 329345^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428006 + ... + 774606.

Almost surely, 2^208413260906 is an apocalyptic number.

208413260906 is a deficient number, since it is larger than the sum of its proper divisors (111876101662).

208413260906 is a wasteful number, since it uses less digits than its factorization.

208413260906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353977.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 208413260906 in words is "two hundred eight billion, four hundred thirteen million, two hundred sixty thousand, nine hundred six".