206323828461 has 6 divisors (see below), whose sum is σ = 298023307790. Its totient is φ = 137549218968.

The previous prime is 206323828441. The next prime is 206323828471. The reversal of 206323828461 is 164828323602.

206323828461 is a `hidden beast` number, since 2 + 0 + 632 + 3 + 8 + 2 + 8 + 4 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 192430491561 + 13893336900 = 438669^2 + 117870^2 .

It is not a de Polignac number, because 206323828461 - 2⁵ = 206323828429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206323828441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11462434906 + ... + 11462434923.

Almost surely, 2^206323828461 is an apocalyptic number.

It is an amenable number.

206323828461 is a deficient number, since it is larger than the sum of its proper divisors (91699479329).

206323828461 is a wasteful number, since it uses less digits than its factorization.

206323828461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22924869835 (or 22924869832 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 206323828461 in words is "two hundred six billion, three hundred twenty-three million, eight hundred twenty-eight thousand, four hundred sixty-one".