206777244313 has 4 divisors (see below), whose sum is σ = 208045816528. Its totient is φ = 205508672100.

The previous prime is 206777244299. The next prime is 206777244319. The reversal of 206777244313 is 313442777602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 206777244313 - 2¹³ = 206777236121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206777244319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634285863 + ... + 634286188.

It is an arithmetic number, because the mean of its divisors is an integer number (52011454132).

Almost surely, 2^206777244313 is an apocalyptic number.

It is an amenable number.

206777244313 is a deficient number, since it is larger than the sum of its proper divisors (1268572215).

206777244313 is a wasteful number, since it uses less digits than its factorization.

206777244313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268572214.

The product of its (nonzero) digits is 1185408, while the sum is 46.

The spelling of 206777244313 in words is "two hundred six billion, seven hundred seventy-seven million, two hundred forty-four thousand, three hundred thirteen".