208674668877 has 16 divisors (see below), whose sum is σ = 280960363008. Its totient is φ = 137752962480.

The previous prime is 208674668849. The next prime is 208674668879. The reversal of 208674668877 is 778866476802.

208674668877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 208674668877 - 2⁸ = 208674668621 is a prime.

It is a super-2 number, since 2×208674668877² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208674668879) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4215802 + ... + 4265012.

It is an arithmetic number, because the mean of its divisors is an integer number (17560022688).

Almost surely, 2^208674668877 is an apocalyptic number.

It is an amenable number.

208674668877 is a deficient number, since it is larger than the sum of its proper divisors (72285694131).

208674668877 is a wasteful number, since it uses less digits than its factorization.

208674668877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63040.

The product of its (nonzero) digits is 303464448, while the sum is 69.

The spelling of 208674668877 in words is "two hundred eight billion, six hundred seventy-four million, six hundred sixty-eight thousand, eight hundred seventy-seven".